Definitions of Managed Objects for Remote Ping, Traceroute, and

Lookup Operations

Status of this Memo

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright © The Internet Society (2000). All Rights Reserved.

Abstract

This memo defines Management Information Bases (MIBs) for performing remote ping, traceroute and lookup operations at a remote host. When managing a network it is useful to be able to initiate and retrieve the results of ping or traceroute operations when performed at a remote host. A Lookup capability is defined in order to enable resolving of either an IP address to an DNS name or an DNS name to an IP address at a remote host.

Currently, there are several enterprise-specific MIBs for performing remote ping or traceroute operations. The purpose of this memo is to define a standards-based solution to enable interoperability.

Table of Contents

   1.0  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .  2
   2.0  The SNMP Network Management Framework   . . . . . . . . . . .  4
   3.0  Structure of the MIBs   . . . . . . . . . . . . . . . . . . .  5
   3.1  Ping MIB  . . . . . . . . . . . . . . . . . . . . . . . . . .  6
     3.1.1  pingMaxConcurrentRequests   . . . . . . . . . . . . . . .  6
     3.1.2  pingCtlTable  . . . . . . . . . . . . . . . . . . . . . .  6
     3.1.3  pingResultsTable  . . . . . . . . . . . . . . . . . . . .  7
     3.1.4  pingProbeHistoryTable   . . . . . . . . . . . . . . . . .  7
   3.2  Traceroute MIB  . . . . . . . . . . . . . . . . . . . . . . .  8
     3.2.1  traceRouteMaxConcurrentRequests   . . . . . . . . . . . .  8
     3.2.2  traceRouteCtlTable  . . . . . . . . . . . . . . . . . . .  8
     3.2.3  traceRouteResultsTable  . . . . . . . . . . . . . . . . .  9
     3.2.4  traceRouteProbeHistoryTable   . . . . . . . . . . . . . .  9
     3.2.5  traceRouteHopsTable   . . . . . . . . . . . . . . . . . . 10
   3.3  Lookup MIB  . . . . . . . . . . . . . . . . . . . . . . . . . 10
     3.3.1  lookupMaxConcurrentRequests and lookupPurgeTime   . . . . 10
     3.3.2  lookupCtlTable  . . . . . . . . . . . . . . . . . . . . . 10
     3.3.3  lookupResultsTable  . . . . . . . . . . . . . . . . . . . 11
   4.0  Definitions   . . . . . . . . . . . . . . . . . . . . . . . . 12
   4.1  DISMAN-PING-MIB   . . . . . . . . . . . . . . . . . . . . . . 12
   4.2  DISMAN-TRACEROUTE-MIB   . . . . . . . . . . . . . . . . . . . 36
   4.3  DISMAN-NSLOOKUP-MIB   . . . . . . . . . . . . . . . . . . . . 63
   5.0  Security Considerations   . . . . . . . . . . . . . . . . . . 73
   6.0  Intellectual Property   . . . . . . . . . . . . . . . . . . . 74
   7.0  Acknowledgments   . . . . . . . . . . . . . . . . . . . . . . 74
   8.0  References  . . . . . . . . . . . . . . . . . . . . . . . . . 74
   9.0  Author's Address  . . . . . . . . . . . . . . . . . . . . . . 76
   10.0  Full Copyright Statement   . . . . . . . . . . . . . . . . . 77

1.0 Introduction

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119, reference [13].

This document is a product of the Distributed Management (DISMAN) Working Group. Its purpose is to define standards-based MIB modules for performing specific remote operations. The remote operations defined by this document consist of the ping, traceroute and lookup functions.

Ping and traceroute are two very useful functions for managing networks. Ping is typically used to determine if a path exists between two hosts while traceroute shows an actual path. Ping is usually implemented using the Internet Control Message Protocol (ICMP) "ECHO" facility. It is also possible to implement a ping capability using alternate methods, some of which are:

   o   Using the UDP echo port (7), if supported.

This is defined by RFC 862 [2].

   o   Timing an SNMP query.
   
   o   Timing a TCP connect attempt.

In general, almost any request/response flow can be used to generate a round-trip time. Often many of the non-ICMP ECHO facility methods stand a better chance of yielding a good response (not timing out for example) since some routers don't honor Echo Requests (timeout situation) or they are handled at lower priority, hence possibly giving false indications of round trip times.

It must be noted that almost any of the various methods used for generating a round-trip time can be considered a form of system attack when used excessively. Sending a system requests too often can negatively effect its performance. Attempting to connect to what is supposed to be an unused port can be very unpredictable. There are tools that attempt to connect to a range of TCP ports to test that any receiving server can handle erroneous connection attempts.

It also is important to the management application using a remote ping capability to know which method is being used. Different methods will yield different response times since the protocol and resulting processing will be different. It is RECOMMENDED that the ping capability defined within this memo be implemented using the ICMP Echo Facility.

Traceroute is usually implemented by transmitting a series of probe packets with increasing time-to-live values. A probe packet is a UDP datagram encapsulated into an IP packet. Each hop in a path to the target (destination) host rejects the probe packet (probe's TTL too small) until its time-to-live value becomes large enough for the probe to be forwarded. Each hop in a traceroute path returns an ICMP message that is used to discover the hop and to calculate a round trip time. Some systems use ICMP probes (ICMP Echo request packets) instead of UDP ones to implement traceroute. In both cases traceroute relies on the probes being rejected via an ICMP message to discover the hops taken along a path to the final destination. Both probe types, UDP and ICMP, are encapsulated into an IP packet and thus have a TTL field that can be used to cause a path rejection.

Implementations of the remote traceroute capability as defined within this memo SHOULD be done using UDP packets to a (hopefully) unused port. ICMP probes (ICMP Echo Request packets) SHOULD NOT be used. Many PC implementations of traceroute use the ICMP probe method, which they should not, since this implementation method has been known to have a high probability of failure. Intermediate hops become invisible when a router either refuses to send an ICMP TTL expired message in response to an incoming ICMP packet or simply tosses ICMP echo requests altogether.

The behavior of some routers not to return a TTL expired message in response to an ICMP Echo request is due in part to the following text extracted from RFC 792 [20]:

"The ICMP messages typically report errors in the processing of datagrams. To avoid the infinite regress of messages about messages etc., no ICMP messages are sent about ICMP messages."

Both ping and traceroute yield round-trip times measured in milliseconds. These times can be used as a rough approximation for network transit time.

The Lookup operation enables the equivalent of either a gethostbyname() or a gethostbyaddr() call being performed at a remote host. The Lookup gethostbyname() capability can be used to determine the symbolic name of a hop in a traceroute path.

Consider the following diagram:

+--------------------------------------------------------------------+
|                                                                    |
|           Remote ping, traceroute,  Actual ping, traceroute,       |
|       +-----+or Lookup op.    +------+or Lookup op.    +------+    |
|       |Local|---------------->|Remote|---------------->|Target|    |
|       | Host|                 | Host |                 | Host |    |
|       +-----+                 +------+                 +------+    |
|                                                                    |
|                                                                    |
+--------------------------------------------------------------------+

A local host is the host from which the remote ping, traceroute, or Lookup operation is initiated using an SNMP request. The remote host is a host where the MIBs defined by this memo are implemented that receives the remote operation via SNMP and performs the actual ping, traceroute, or lookup function.

2.0 The SNMP Network Management Framework

The SNMP Management Framework presently consists of five major components:

   o   An overall architecture, described in RFC 2571 [7].
   
   o   Mechanisms for describing and naming objects and events for the
       purpose of management.  The first version of this Structure of
       Management Information (SMI) is called SMIv1 and described in STD
       16, RFC 1155 [14], STD 16, RFC 1212 [15] and RFC 1215 [16].  The
       second version, called SMIv2, is described in STD 58, RFC 2578
       [3], STD 58, RFC 2579 [4] and STD 58, RFC 2580 [5].
   
   o   Message protocols for transferring management information.  The
       first version of the SNMP message protocol is called SNMPv1 and
       described in STD 15, RFC 1157 [1].  A second version of the SNMP
       message protocol, which is not an Internet standards track
       protocol, is called SNMPv2c and described in RFC 1901 [17] and
       RFC 1906 [18].  The third version of the message protocol is
       called SNMPv3 and described in RFC 1906 [18], RFC 2572 [8] and
       RFC 2574 [10].
   
   o   Protocol operations for accessing management information.  The
       first set of protocol operations and associated PDU formats is
       described in STD 15, RFC 1157 [1].  A second set of protocol
       operations and associated PDU formats is described in RFC 1905
       [6].
   
   o   A set of fundamental applications described in RFC 2573 [9] and
       the view-based access control mechanism described in RFC 2575
       [11].

Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the mechanisms defined in the SMI.

This memo specifies MIB modules that are compliant to the SMIv2. A MIB conforming to the SMIv1 can be produced through the appropriate translations. The resulting translated MIB must be semantically equivalent, except where objects or events are omitted because no translation is possible (use of Counter64). Some machine readable information in SMIv2 will be converted into textual descriptions in SMIv1 during the translation process. However, this loss of machine readable information is not considered to change the semantics of the MIB.

3.0 Structure of the MIBs

This document defines three MIB modules:

   o   DISMAN-PING-MIB

Defines a ping MIB.

   o   DISMAN-TRACEROUTE-MIB

Defines a traceroute MIB.

   o   DISMAN-NSLOOKUP-MIB

Provides access to the resolver gethostbyname() and gethostbyaddr() functions at a remote host.

The ping and traceroute MIBs are structured to allow creation of ping or traceroute tests that can be set up to periodically issue a series of operations and generate NOTIFICATIONs to report on test results. Many network administrators have in the past written UNIX shell scripts or command batch files to operate in fashion similar to the functionality provided by the ping and traceroute MIBs defined within this memo. The intent of this document is to acknowledge the importance of these functions and to provide a standards-based solution.

3.1 Ping MIB

The DISMAN-PING-MIB consists of the following components:

   o   pingMaxConcurrentRequests
   
   o   pingCtlTable
   
   o   pingResultsTable
   
   o   pingProbeHistoryTable

3.1.1 pingMaxConcurrentRequests

The object pingMaxConcurrentRequests enables control of the maximum number of concurrent active requests that an agent implementation supports. It is permissible for an agent either to limit the maximum upper range allowed for this object or to implement this object as read-only with an implementation limit expressed as its value.

3.1.2 pingCtlTable

A remote ping test is started by setting pingCtlAdminStatus to enabled(1). The corresponding pingCtlEntry MUST have been created and its pingCtlRowStatus set to active(1) prior to starting the test. A single SNMP PDU can be used to create and start a remote ping test. Within the PDU, pingCtlTargetAddress should be set to the target host's address (pingCtlTargetAddressType will default to ipv4(1)), pingCtlAdminStatus to enabled(1), and pingCtlRowStatus to createAndGo(4).

The first index element, pingCtlOwnerIndex, is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and allows a management application to identify its entries. The send index, pingCtlTestName (also an SnmpAdminString), enables the same management application to have multiple requests outstanding.

Using the maximum value for the parameters defined within a pingEntry can result in a single remote ping test taking at most 15 minutes (pingCtlTimeOut times pingCtlProbeCount) plus whatever time it takes to send the ping request and receive its response over the network from the target host. Use of the defaults for pingCtlTimeOut and pingCtlProbeCount yields a maximum of 3 seconds to perform a "normal" ping test.

A management application can delete an active remote ping request by setting the corresponding pingCtlRowStatus object to destroy(6).

The contents of the pingCtlTable is preserved across reIPLs (Initial Program Loads) of its agent according the values of each of the pingCtlStorageType objects.

3.1.3 pingResultsTable

An entry in the pingResultsTable is created for a corresponding pingCtlEntry once the test defined by this entry is started.

3.1.4 pingProbeHistoryTable

The results of past ping probes can be stored in this table on a per pingCtlEntry basis. This table is initially indexed by pingCtlOwnerIndex and pingCtlTestName in order for the results of a probe to relate to the pingCtlEntry that caused it. The maximum number of entries stored in this table per pingCtlEntry is determined by the value of pingCtlMaxRows.

An implementation of this MIB will remove the oldest entry in the pingProbeHistoryTable to allow the addition of an new entry once the number of rows in the pingProbeHistoryTable reaches the value specified by pingCtlMaxRows. An implementation MUST start assigning pingProbeHistoryIndex values at 1 and wrap after exceeding the maximum possible value as defined by the limit of this object ('ffffffff'h).

3.2 Traceroute MIB

The DISMAN-TRACEROUTE-MIB consists of the following components:

   o   traceRouteMaxConcurrentRequests
   
   o   traceRouteCtlTable
   
   o   traceRouteResultsTable
   
   o   traceRouteProbeHistoryTable
   
   o   traceRouteHopsTable

3.2.1 traceRouteMaxConcurrentRequests

The object traceRouteMaxConcurrentRequests enables control of the maximum number of concurrent active requests that an agent implementation supports. It is permissible for an agent either to limit the maximum upper range allowed for this object or to implement this object as read-only with an implementation limit expressed as its value.

3.2.2 traceRouteCtlTable

A remote traceroute test is started by setting traceRouteCtlAdminStatus to enabled(1). The corresponding traceRouteCtlEntry MUST have been created and its traceRouteCtlRowStatus set to active(1) prior to starting the test. A single SNMP PDU can be used to create and start a remote traceroute test. Within the PDU, traceRouteCtlTargetAddress should be set to the target host's address (traceRouteCtlTargetAddressType will default to ipv4(1)), traceRouteCtlAdminStatus to enabled(1), and traceRouteCtlRowStatus to createAndGo(4).

The first index element, traceRouteCtlOwnerIndex, is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and allows a management application to identify its entries. The second index, traceRouteCtlTestName (also an SnmpAdminString), enables the same management application to have multiple requests outstanding.

   Traceroute has a much longer theoretical maximum time for completion
   than ping. Basically 42 hours and 30 minutes (the product of
   traceRouteCtlTimeOut, traceRouteCtlProbesPerHop, and
   traceRouteCtlMaxTtl) plus some network transit time!  Use of the
   defaults defined within an traceRouteCtlEntry yields a maximum of 4
   minutes and 30 seconds for a default traceroute operation.  Clearly

42 plus hours is too long to wait for a traceroute operation to complete.

The maximum TTL value in effect for traceroute determines how long the traceroute function will keep increasing the TTL value in the probe it transmits hoping to reach the target host. The function ends whenever the maximum TTL is exceeded or the target host is reached. The object traceRouteCtlMaxFailures was created in order to impose a throttle for how long traceroute continues to increase the TTL field in a probe without receiving any kind of response (timeouts). It is RECOMMENDED that agent implementations impose a time limit for how long it allows a traceroute operation to take relative to how the function is implemented. For example, an implementation that can't process multiple traceroute operations at the same time SHOULD impose a shorter maximum allowed time period.

A management application can delete an active remote traceroute request by setting the corresponding traceRouteCtlRowStatus object to destroy(6).

The contents of the traceRouteCtlTable is preserved across reIPLs (Initial Program Loads) of its agent according to the values of each of the traceRouteCtlStorageType objects.

3.2.3 traceRouteResultsTable

An entry in the traceRouteResultsTable is created upon determining the results of a specific traceroute operation. Entries in this table relate back to the traceRouteCtlEntry that caused the corresponding traceroute operation to occur. The objects traceRouteResultsCurHopCount and traceRouteResultsCurProbeCount can be examined to determine how far the current remote traceroute operation has reached.

3.2.4 traceRouteProbeHistoryTable

The results of past traceroute probes can be stored in this table on a per traceRouteCtlEntry basis. This table is initially indexed by traceRouteCtlOwnerIndex and traceRouteCtlTestName in order for the results of a probe to relate to the traceRouteCtlEntry that caused it. The number of entries stored in this table per traceRouteCtlEntry is determined by the value of traceRouteCtlMaxRows.

An implementation of this MIB will remove the oldest entry in the traceRouteProbeHistoryTable to allow the addition of an new entry once the number of rows in the traceRouteProbeHistoryTable reaches the value of traceRouteCtlMaxRows. An implementation MUST start assigning traceRouteProbeHistoryIndex values at 1 and wrap after exceeding the maximum possible value as defined by the limit of this object ('ffffffff'h).

3.2.5 traceRouteHopsTable

The current traceroute path can be stored in this table on a per traceRouteCtlEntry basis. This table is initially indexed by traceRouteCtlOwnerIndex and traceRouteCtlTestName in order for a traceroute path to relate to the traceRouteCtlEntry that caused it. A third index, traceRouteHopsHopIndex, enables keeping one traceRouteHopsEntry per traceroute hop. Creation of traceRouteHopsTable entries is enabled by setting the corresponding traceRouteCtlCreateHopsEntries object to true(1).

3.3 Lookup MIB

The DISMAN-NSLOOKUP-MIB consists of the following components:

   o   lookupMaxConcurrentRequests, and lookupPurgeTime
   
   o   lookupCtlTable
   
   o   lookupResultsTable

3.3.1 lookupMaxConcurrentRequests and lookupPurgeTime

The object lookupMaxConcurrentRequests enables control of the maximum number of concurrent active requests that an agent implementation is structured to support. It is permissible for an agent either to limit the maximum upper range allowed for this object or to implement this object as read-only with an implementation limit expressed as its value.

The object lookupPurgeTime provides a method for entries in the lookupCtlTable and lookupResultsTable to be automatically deleted after the corresponding operation completes.

3.3.2 lookupCtlTable

A remote lookup operation is initiated by performing an SNMP SET request on lookupCtlRowStatus. A single SNMP PDU can be used to create and start a remote lookup operation. Within the PDU, lookupCtlTargetAddress should be set to the entity to be resolved (lookupCtlTargetAddressType will default to ipv4(1)) and lookupCtlRowStatus to createAndGo(4). The object lookupCtlOperStatus can be examined to determine the state of an lookup operation. A management application can delete an active remote lookup request by setting the corresponding lookupCtlRowStatus object to destroy(6).

An lookupCtlEntry is initially indexed by lookupCtlOwnerIndex, which is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and also allows for a management application to identify its entries. The lookupCtlOwnerIndex portion of the index is then followed by lookupCtlOperationName. The lookupCtlOperationName index enables the same lookupCtlOwnerIndex entity to have multiple outstanding requests.

The value of lookupCtlTargetAddressType determines which lookup function to perform. Specification of dns(16) as the value of this index implies that the gethostbyname function should be performed to determine the numeric addresses associated with a symbolic name via lookupResultsTable entries. Use of a value of either ipv4(1) or ipv6(2) implies that the gethostbyaddr function should be performed to determine the symbolic name(s) associated with a numeric address at a remote host.

3.3.3 lookupResultsTable

The lookupResultsTable is used to store the results of lookup operations. The lookupResultsTable is initially indexed by the same index elements that the lookupCtlTable contains (lookupCtlOwnerIndex and lookupCtlOperationName) but has a third index element, lookupResultsIndex (Unsigned32 textual convention), in order to associate multiple results with the same lookupCtlEntry.

Both the gethostbyname and gethostbyaddr functions typically return a pointer to a hostent structure after being called. The hostent structure is defined as:

      struct hostent {
         char  *h_name;      /* official host name       */
         char  *h_aliases[]; /* list of other aliases    */
         int    h_addrtype;  /* host address type        */
         int    h_length;    /* length of host address   */
         char **h_addr_list; /* list of address for host */
      };

The hostent structure is listed here in order to address the fact that a remote host can be multi-homed and can have multiple symbolic (DNS) names. It is not intended to imply that implementations of the DISMAN-LOOKUP-MIB are limited to systems where the hostent structure is supported.

The gethostbyaddr function is called with a host address as its parameter and is used primarily to determine a symbolic name to associate with the host address. Entries in the lookupResultsTable MUST be made for each host name returned. The official host name MUST be assigned a lookupResultsIndex of 1.

The gethostbyname function is called with a symbolic host name and is used primarily to retrieve a host address. Normally, the first h_addr_list host address is considered to be the primary address and as such is associated with the symbolic name passed on the call.

Entries MUST be stored in the lookupResultsTable in the order that they are retrieved. Values assigned to lookupResultsIndex MUST start at 1 and increase in order.

An implementation SHOULD NOT retain SNMP-created entries in the lookupTable across reIPLs (Initial Program Loads) of its agent, since management applications need to see consistent behavior with respect to the persistence of the table entries that they create.

4.0 Definitions

4.1 DISMAN-PING-MIB

DISMAN-PING-MIB DEFINITIONS ::= BEGIN

IMPORTS

    MODULE-IDENTITY, OBJECT-TYPE, Integer32,
    Unsigned32, mib-2,
    NOTIFICATION-TYPE, OBJECT-IDENTITY
        FROM SNMPv2-SMI                  -- RFC2578
    TEXTUAL-CONVENTION, RowStatus,
    StorageType, DateAndTime, TruthValue
        FROM SNMPv2-TC                   -- RFC2579
    MODULE-COMPLIANCE, OBJECT-GROUP,
    NOTIFICATION-GROUP
        FROM SNMPv2-CONF                 -- RFC2580
    InterfaceIndexOrZero                 -- RFC2863
        FROM IF-MIB
    SnmpAdminString
        FROM SNMP-FRAMEWORK-MIB          -- RFC2571
    InetAddressType, InetAddress
        FROM INET-ADDRESS-MIB;           -- RFC2851

pingMIB MODULE-IDENTITY

    LAST-UPDATED "200009210000Z"         -- 21 September 2000
    ORGANIZATION "IETF Distributed Management Working Group"
    CONTACT-INFO
        "Kenneth White

International Business Machines Corporation Network Computing Software Division
Research Triangle Park, NC, USA

        E-mail: wkenneth@us.ibm.com"
    DESCRIPTION
        "The Ping MIB (DISMAN-PING-MIB) provides the capability of
        controlling the use of the ping function at a remote
        host."

-- Revision history

     REVISION     "200009210000Z"         -- 21 September 2000
     DESCRIPTION
         "Initial version, published as RFC 2925."
    
    ::= { mib-2 80 }
 
 -- Textual Conventions

OperationResponseStatus ::= TEXTUAL-CONVENTION

    STATUS  current
    DESCRIPTION
        "Used to report the result of an operation:
    
         responseReceived(1) - Operation completes successfully.
         unknown(2) - Operation failed due to unknown error.
         internalError(3) - An implementation detected an error
              in its own processing that caused an operation
              to fail.
         requestTimedOut(4) - Operation failed to receive a
              valid reply within the time limit imposed on it.
         unknownDestinationAddress(5) - Invalid destination
              address.
         noRouteToTarget(6) - Could not find a route to target.
         interfaceInactiveToTarget(7) - The interface to be
              used in sending a probe is inactive without an
              alternate route existing.
         arpFailure(8) - Unable to resolve a target address to a
              media specific address.
         maxConcurrentLimitReached(9) - The maximum number of
              concurrent active operations would have been exceeded
              if the corresponding operation was allowed.
         unableToResolveDnsName(10) - The DNS name specified was
              unable to be mapped to an IP address.
         invalidHostAddress(11) - The IP address for a host
    
              has been determined to be invalid.  Examples of this
              are broadcast or multicast addresses."
    SYNTAX INTEGER {
                 responseReceived(1),
                 unknown(2),
                 internalError(3),
                 requestTimedOut(4),
                 unknownDestinationAddress(5),
                 noRouteToTarget(6),
                 interfaceInactiveToTarget(7),
                 arpFailure(8),
                 maxConcurrentLimitReached(9),
                 unableToResolveDnsName(10),
                 invalidHostAddress(11)
              }

-- Top level structure of the MIB

 pingNotifications              OBJECT IDENTIFIER ::= { pingMIB 0 }
 pingObjects                    OBJECT IDENTIFIER ::= { pingMIB 1 }
 pingConformance                OBJECT IDENTIFIER ::= { pingMIB 2 }

-- The registration node (point) for ping implementation types

 pingImplementationTypeDomains  OBJECT IDENTIFIER ::= { pingMIB 3 }

pingIcmpEcho OBJECT-IDENTITY

    STATUS      current
    DESCRIPTION
        "Indicates that an implementation is using the Internet
        Control Message Protocol (ICMP) 'ECHO' facility."
    ::= { pingImplementationTypeDomains 1 }

pingUdpEcho OBJECT-IDENTITY

    STATUS      current
    DESCRIPTION
        "Indicates that an implementation is using the UDP echo
        port (7)."
    REFERENCE
        "RFC 862, 'Echo Protocol'."
    ::= { pingImplementationTypeDomains 2 }

pingSnmpQuery OBJECT-IDENTITY

    STATUS      current
    DESCRIPTION
        "Indicates that an implementation is an SNMP query to
        calculate a round trip time."
    
    ::= { pingImplementationTypeDomains 3 }

pingTcpConnectionAttempt OBJECT-IDENTITY

    STATUS      current
    DESCRIPTION
        "Indicates that an implementation is attempting to
        connect to a TCP port in order to calculate a round
        trip time."
    ::= { pingImplementationTypeDomains 4 }

-- Simple Object Definitions

pingMaxConcurrentRequests OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "requests"
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
       "The maximum number of concurrent active ping requests
       that are allowed within an agent implementation.  A value
       of 0 for this object implies that there is no limit for
       the number of concurrent active requests in effect."
    DEFVAL { 10 }
    ::= { pingObjects 1 }

-- Ping Control Table

pingCtlTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF PingCtlEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines the ping Control Table for providing, via SNMP,
        the capability of performing ping operations at
        a remote host.  The results of these operations are
        stored in the pingResultsTable and the
        pingProbeHistoryTable."
   ::= { pingObjects 2 }

pingCtlEntry OBJECT-TYPE

    SYNTAX      PingCtlEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines an entry in the pingCtlTable.  The first index
        element, pingCtlOwnerIndex, is of type SnmpAdminString,
        a textual convention that allows for use of the SNMPv3
    
        View-Based Access Control Model (RFC 2575 [11], VACM)
        and allows an management application to identify its
        entries.  The second index, pingCtlTestName (also an
        SnmpAdminString), enables the same management
        application to have multiple outstanding requests."
    INDEX {
             pingCtlOwnerIndex,
             pingCtlTestName
          }
    ::= { pingCtlTable 1 }

PingCtlEntry ::=

    SEQUENCE {
        pingCtlOwnerIndex             SnmpAdminString,
        pingCtlTestName               SnmpAdminString,
        pingCtlTargetAddressType      InetAddressType,
        pingCtlTargetAddress          InetAddress,
        pingCtlDataSize               Unsigned32,
        pingCtlTimeOut                Unsigned32,
        pingCtlProbeCount             Unsigned32,
        pingCtlAdminStatus            INTEGER,
        pingCtlDataFill               OCTET STRING,
        pingCtlFrequency              Unsigned32,
        pingCtlMaxRows                Unsigned32,
        pingCtlStorageType            StorageType,
        pingCtlTrapGeneration         BITS,
        pingCtlTrapProbeFailureFilter Unsigned32,
        pingCtlTrapTestFailureFilter  Unsigned32,
        pingCtlType                   OBJECT IDENTIFIER,
        pingCtlDescr                  SnmpAdminString,
        pingCtlSourceAddressType      InetAddressType,
        pingCtlSourceAddress          InetAddress,
        pingCtlIfIndex                InterfaceIndexOrZero,
        pingCtlByPassRouteTable       TruthValue,
        pingCtlDSField                Unsigned32,
        pingCtlRowStatus              RowStatus
    }

pingCtlOwnerIndex OBJECT-TYPE

    SYNTAX      SnmpAdminString (SIZE(0..32))
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
       "To facilitate the provisioning of access control by a
       security administrator using the View-Based Access
       Control Model (RFC 2575, VACM) for tables in which
       multiple users may need to independently create or
       modify entries, the initial index is used as an 'owner

index'. Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.

       When used in conjunction with such a security policy all
       entries in the table belonging to a particular user (or
       group) will have the same value for this initial index.
       For a given user's entries in a particular table, the
       object identifiers for the information in these entries
       will have the same subidentifiers (except for the 'column'
       subidentifier) up to the end of the encoded owner index.
       To configure VACM to permit access to this portion of the
       table, one would create vacmViewTreeFamilyTable entries
       with the value of vacmViewTreeFamilySubtree including
       the owner index portion, and vacmViewTreeFamilyMask
       'wildcarding' the column subidentifier.  More elaborate
       configurations are possible."
    ::= { pingCtlEntry 1 }

pingCtlTestName OBJECT-TYPE

    SYNTAX      SnmpAdminString (SIZE(0..32))
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The name of the ping test.  This is locally unique, within
        the scope of an pingCtlOwnerIndex."
    ::= { pingCtlEntry 2 }

pingCtlTargetAddressType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the type of host address to be used at a remote
        host for performing a ping operation."
    DEFVAL { unknown }
    ::= { pingCtlEntry 3 }

pingCtlTargetAddress OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the host address to be used at a remote host for
        performing a ping operation.  The host address type is
        determined by the object value of corresponding
        pingCtlTargetAddressType.
    
        A value for this object MUST be set prior to transitioning
        its corresponding pingCtlEntry to active(1) via
        pingCtlRowStatus."
    DEFVAL { ''H }
    ::= { pingCtlEntry 4 }

pingCtlDataSize OBJECT-TYPE

    SYNTAX      Unsigned32 (0..65507)
    UNITS       "octets"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the size of the data portion to be
        transmitted in a ping operation in octets.  A ping
        request is usually an ICMP message encoded
        into an IP packet.  An IP packet has a maximum size
        of 65535 octets.  Subtracting the size of the ICMP
        or UDP header (both 8 octets) and the size of the IP
        header (20 octets) yields a maximum size of 65507
        octets."
    DEFVAL { 0 }
    ::= { pingCtlEntry 5 }

pingCtlTimeOut OBJECT-TYPE

    SYNTAX      Unsigned32 (1..60)
    UNITS       "seconds"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the time-out value, in seconds, for a
        remote ping operation."
    DEFVAL { 3 }
    ::= { pingCtlEntry 6 }

pingCtlProbeCount OBJECT-TYPE

    SYNTAX      Unsigned32 (1..15)
    UNITS       "probes"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the number of times to perform a ping
        operation at a remote host."
    DEFVAL { 1 }
    ::= { pingCtlEntry 7 }

pingCtlAdminStatus OBJECT-TYPE

    SYNTAX      INTEGER {
                          enabled(1), -- test should be started
    
                          disabled(2) -- test should be stopped
                        }
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Reflects the desired state that a pingCtlEntry should be
        in:
    
           enabled(1)  - Attempt to activate the test as defined by
                         this pingCtlEntry.
           disabled(2) - Deactivate the test as defined by this
                         pingCtlEntry.
    
        Refer to the corresponding pingResultsOperStatus to
        determine the operational state of the test defined by
        this entry."
     DEFVAL { disabled }
    ::= { pingCtlEntry 8 }
 
 pingCtlDataFill  OBJECT-TYPE
    SYNTAX      OCTET STRING (SIZE(0..1024))
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The content of this object is used together with the
        corresponding pingCtlDataSize value to determine how to
        fill the data portion of a probe packet.  The option of
        selecting a data fill pattern can be useful when links
        are compressed or have data pattern sensitivities. The
        contents of pingCtlDataFill should be repeated in a ping
        packet when the size of the data portion of the ping
        packet is greater than the size of pingCtlDataFill."
    DEFVAL { '00'H }
    ::= { pingCtlEntry 9 }
 
 pingCtlFrequency  OBJECT-TYPE
    SYNTAX      Unsigned32
    UNITS       "seconds"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The number of seconds to wait before repeating a ping test
        as defined by the value of the various objects in the
        corresponding row.

A single ping test consists of a series of ping probes.

The number of probes is determined by the value of the

corresponding pingCtlProbeCount object. After a single

test completes the number of seconds as defined by the value of pingCtlFrequency MUST elapse before the
next ping test is started.

        A value of 0 for this object implies that the test
        as defined by the corresponding entry will not be
        repeated."
    DEFVAL { 0 }
    ::= { pingCtlEntry 10 }

pingCtlMaxRows OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "rows"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The maximum number of entries allowed in the
        pingProbeHistoryTable.  An implementation of this
        MIB will remove the oldest entry in the
        pingProbeHistoryTable to allow the addition of an
        new entry once the number of rows in the
        pingProbeHistoryTable reaches this value.

Old entries are not removed when a new test is
started. Entries are added to the pingProbeHistoryTable until pingCtlMaxRows is reached before entries begin to be removed.

        A value of 0 for this object disables creation of
        pingProbeHistoryTable entries."
    DEFVAL      { 50 }
    ::= { pingCtlEntry 11 }

pingCtlStorageType OBJECT-TYPE

    SYNTAX      StorageType
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The storage type for this conceptual row.
        Conceptual rows having the value 'permanent' need not
        allow write-access to any columnar objects in the row."
    DEFVAL { nonVolatile }
    ::= { pingCtlEntry 12 }

pingCtlTrapGeneration OBJECT-TYPE

    SYNTAX      BITS {
                   probeFailure(0),
                   testFailure(1),
    
                   testCompletion(2)
                  }
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The value of this object determines when and if
        to generate a notification for this entry:
    
        probeFailure(0)   - Generate a pingProbeFailed
            notification subject to the value of
            pingCtlTrapProbeFailureFilter.  The object
            pingCtlTrapProbeFailureFilter can be used
            to specify the number of successive probe failures
            that are required before a pingProbeFailed
            notification can be generated.
        testFailure(1)    - Generate a pingTestFailed
            notification. In this instance the object
            pingCtlTrapTestFailureFilter can be used to
            determine the number of probe failures that
            signal when a test fails.
        testCompletion(2) - Generate a pingTestCompleted
            notification.
    
        The value of this object defaults to zero, indicating
        that none of the above options have been selected."
    ::= { pingCtlEntry 13 }

pingCtlTrapProbeFailureFilter OBJECT-TYPE

    SYNTAX      Unsigned32 (0..15)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The value of this object is used to determine when
        to generate a pingProbeFailed NOTIFICATION.
    
        Setting pingCtlTrapGeneration
        to probeFailure(0) implies that a pingProbeFailed
        NOTIFICATION is generated only when the number of
        successive probe failures as indicated by the
        value of pingCtlTrapPrbefailureFilter fail within
        a given ping test."
    DEFVAL { 1 }
    ::= { pingCtlEntry 14 }

pingCtlTrapTestFailureFilter OBJECT-TYPE

    SYNTAX      Unsigned32 (0..15)
    MAX-ACCESS  read-create
    STATUS      current

DESCRIPTION

"The value of this object is used to determine when to generate a pingTestFailed NOTIFICATION.

        Setting pingCtlTrapGeneration to testFailure(1)
        implies that a pingTestFailed NOTIFICATION is
        generated only when the number of ping failures
        within a test exceed the value of
        pingCtlTrapTestFailureFilter."
    DEFVAL { 1 }
    ::= { pingCtlEntry 15 }

pingCtlType OBJECT-TYPE

    SYNTAX      OBJECT IDENTIFIER
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The value of this object is used to either report or
        select the implementation method to be used for
        calculating a ping response time.  The value of this
        object MAY be selected from pingImplementationTypeDomains.
    
        Additional implementation types SHOULD be allocated as
        required by implementers of the DISMAN-PING-MIB under
        their enterprise specific registration point and not
        beneath pingImplementationTypeDomains."
    DEFVAL { pingIcmpEcho }
    ::= { pingCtlEntry 16 }

pingCtlDescr OBJECT-TYPE

    SYNTAX      SnmpAdminString
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The purpose of this object is to provide a
        descriptive name of the remote ping test."
    DEFVAL { '00'H }
    ::= { pingCtlEntry 17 }

pingCtlSourceAddressType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the type of the source address,
        pingCtlSourceAddress, to be used at a remote host
        when performing a ping operation."
    DEFVAL { ipv4 }
    ::= { pingCtlEntry 18 }

pingCtlSourceAddress OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Use the specified IP address (which must be given
        in numeric form, not as a hostname) as the source
        address in outgoing probe packets.  On hosts with
        more than one IP address, this option can be used
        to force the source address to be something other
        than the primary IP address of the interface the
        probe packet is sent on.  If the IP address is not
        one of this machine's interface addresses, an error
        is returned and nothing is sent.  A zero length
        octet string value for this object disables source
        address specification.
    
        The address type (InetAddressType) that relates to
        this object is specified by the corresponding value
        of pingCtlSourceAddressType."
    DEFVAL { ''H }
    ::= { pingCtlEntry 19 }

pingCtlIfIndex OBJECT-TYPE

    SYNTAX      InterfaceIndexOrZero
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Setting this object to an interface's ifIndex prior
        to starting a remote ping operation directs
        the ping probes to be transmitted over the
        specified interface.  A value of zero for this object
        means that this option is not enabled."
    DEFVAL { 0 }
    ::= { pingCtlEntry 20 }

pingCtlByPassRouteTable OBJECT-TYPE

    SYNTAX TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
       "The purpose of this object is to optionally enable
       bypassing the route table.  If enabled, the remote
       host will bypass the normal routing tables and send
       directly to a host on an attached network.  If the
       host is not on a directly-attached network, an
    
       error is returned.  This option can be used to perform
       the ping operation to a local host through an
       interface that has no route defined (e.g., after the
       interface was dropped by routed)."
    DEFVAL { false }
    ::= { pingCtlEntry 21 }

pingCtlDSField OBJECT-TYPE

    SYNTAX      Unsigned32 (0..255)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the value to store in the Differentiated
        Services (DS) Field in the IP packet used to
        encapsulate the ping probe.  The DS Field is defined
        as the Type of Service (TOS) octet in a IPv4 header
        or as the Traffic Class octet in a IPv6 header.
    
        The value of this object must be a decimal integer
        in the range from 0 to 255.  This option can be used
        to determine what effect an explicit DS Field setting
        has on a ping response.  Not all values are legal or
        meaningful.  A value of 0 means that the function
     represented by this option is not supported.  DS Field
     usage is often not supported by IP implementations and
     not all values are supported.  Refer to RFC 2474 for
     guidance on usage of this field."
    REFERENCE
        "Refer to RFC 2474 for the definition of the
        Differentiated Services Field and to RFC 1812
        Section 5.3.2 for Type of Service (TOS)."
    DEFVAL { 0 }
    ::= { pingCtlEntry 22 }

pingCtlRowStatus OBJECT-TYPE

    SYNTAX      RowStatus
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "This object allows entries to be created and deleted
        in the pingCtlTable.  Deletion of an entry in this
        table results in all corresponding (same
        pingCtlOwnerIndex and pingCtlTestName index values)
        pingResultsTable and pingProbeHistoryTable entries
        being deleted.

A value MUST be specified for pingCtlTargetAddress
prior to a transition to active(1) state being
accepted.

Activation of a remote ping operation is controlled via pingCtlAdminStatus and not by changing
this object's value to active(1).

Transitions in and out of active(1) state are not allowed while an entry's pingResultsOperStatus is active(1) with the exception that deletion of
an entry in this table by setting its RowStatus
object to destroy(6) will stop an active
ping operation.

        The operational state of a ping operation
        can be determined by examination of its
        pingResultsOperStatus object."
    REFERENCE
        "See definition of RowStatus in RFC 2579, 'Textual
        Conventions for SMIv2.'"
    ::= { pingCtlEntry 23 }

-- Ping Results Table

pingResultsTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF PingResultsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines the Ping Results Table for providing
        the capability of performing ping operations at
        a remote host.  The results of these operations are
        stored in the pingResultsTable and the pingPastProbeTable.
   
        An entry is added to the pingResultsTable when an
        pingCtlEntry is started by successful transition
        of its pingCtlAdminStatus object to enabled(1).
        An entry is removed from the pingResultsTable when
        its corresponding pingCtlEntry is deleted."
   ::= { pingObjects 3 }

pingResultsEntry OBJECT-TYPE

    SYNTAX      PingResultsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines an entry in the pingResultsTable.  The
        pingResultsTable has the same indexing as the
        pingCtlTable in order for a pingResultsEntry to
    
        correspond to the pingCtlEntry that caused it to
        be created."
    INDEX {
             pingCtlOwnerIndex,
             pingCtlTestName
          }
    ::= { pingResultsTable 1 }

PingResultsEntry ::=

SEQUENCE {

        pingResultsOperStatus          INTEGER,
        pingResultsIpTargetAddressType InetAddressType,
        pingResultsIpTargetAddress     InetAddress,
        pingResultsMinRtt              Unsigned32,
        pingResultsMaxRtt              Unsigned32,
        pingResultsAverageRtt          Unsigned32,
        pingResultsProbeResponses      Unsigned32,
        pingResultsSentProbes          Unsigned32,
        pingResultsRttSumOfSquares     Unsigned32,
        pingResultsLastGoodProbe       DateAndTime
     }

pingResultsOperStatus OBJECT-TYPE

    SYNTAX      INTEGER {
                          enabled(1),  -- test is in progress
                          disabled(2)  -- test has stopped
                        }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Reflects the operational state of a pingCtlEntry:
           enabled(1)   - Test is active.
           disabled(2)  - Test has stopped."
    ::= { pingResultsEntry 1 }

pingResultsIpTargetAddressType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This objects indicates the type of address stored
        in the corresponding pingResultsIpTargetAddress
        object."
    DEFVAL { unknown }
    ::= { pingResultsEntry 2 }

pingResultsIpTargetAddress OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This objects reports the IP address associated
        with a pingCtlTargetAddress value when the destination
        address is specified as a DNS name.  The value of
        this object should be a zero length octet string
        when a DNS name is not specified or when a
        specified DNS name fails to resolve."
    DEFVAL { ''H }
    ::= { pingResultsEntry 3 }

pingResultsMinRtt OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "milliseconds"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The minimum ping round-trip-time (RTT) received.  A value
        of 0 for this object implies that no RTT has been received."
    ::= { pingResultsEntry 4 }

pingResultsMaxRtt OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "milliseconds"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The maximum ping round-trip-time (RTT) received.  A value
        of 0 for this object implies that no RTT has been received."
    ::= { pingResultsEntry 5 }

pingResultsAverageRtt OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "milliseconds"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The current average ping round-trip-time (RTT)."
    ::= { pingResultsEntry 6 }

pingResultsProbeResponses OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "responses"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Number of responses received for the corresponding
    
        pingCtlEntry and pingResultsEntry.  The value of this object
        MUST be reported as 0 when no probe responses have been
        received."
    ::= { pingResultsEntry 7 }

pingResultsSentProbes OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "probes"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The value of this object reflects the number of probes sent
        for the corresponding pingCtlEntry and pingResultsEntry.
        The value of this object MUST be reported as 0 when no probes
        have been sent."
    ::= { pingResultsEntry 8 }

pingResultsRttSumOfSquares OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "milliseconds"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This object contains the sum of the squares for all ping
        responses received.  Its purpose is to enable standard
        deviation calculation.  The value of this object MUST
        be reported as 0 when no ping responses have been
        received."
    ::= { pingResultsEntry 9 }

pingResultsLastGoodProbe OBJECT-TYPE

    SYNTAX      DateAndTime
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Date and time when the last response was received for
        a probe."
    ::= { pingResultsEntry 10 }
 
 -- Ping Probe History Table

pingProbeHistoryTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF PingProbeHistoryEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines a table for storing the results of a ping
        operation.  Entries in this table are limited by

the value of the corresponding pingCtlMaxRows
object.

An entry in this table is created when the result of
a ping probe is determined. The initial 2 instance identifier index values identify the pingCtlEntry
that a probe result (pingProbeHistoryEntry) belongs
to. An entry is removed from this table when its corresponding pingCtlEntry is deleted.

        An implementation of this MIB will remove the oldest
        entry in the pingProbeHistoryTable to allow the
        addition of an new entry once the number of rows in
        the pingProbeHistoryTable reaches the value specified
        by pingCtlMaxRows."
   ::= { pingObjects 4 }

pingProbeHistoryEntry OBJECT-TYPE

    SYNTAX      PingProbeHistoryEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines an entry in the pingProbeHistoryTable.
        The first two index elements identify the
        pingCtlEntry that a pingProbeHistoryEntry belongs
        to.  The third index element selects a single
        probe result."
    INDEX {
             pingCtlOwnerIndex,
             pingCtlTestName,
             pingProbeHistoryIndex
           }
    ::= { pingProbeHistoryTable 1 }

PingProbeHistoryEntry ::=

    SEQUENCE {
        pingProbeHistoryIndex         Unsigned32,
        pingProbeHistoryResponse      Unsigned32,
        pingProbeHistoryStatus        OperationResponseStatus,
        pingProbeHistoryLastRC        Integer32,
        pingProbeHistoryTime          DateAndTime
    }

pingProbeHistoryIndex OBJECT-TYPE

    SYNTAX      Unsigned32 (1..'ffffffff'h)
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION

"An entry in this table is created when the result of a ping probe is determined. The initial 2 instance identifier index values identify the pingCtlEntry
that a probe result (pingProbeHistoryEntry) belongs
to.

        An implementation MUST start assigning
        pingProbeHistoryIndex values at 1 and wrap after
        exceeding the maximum possible value as defined by
        the limit of this object ('ffffffff'h)."
    ::= { pingProbeHistoryEntry 1 }

pingProbeHistoryResponse OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "milliseconds"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The amount of time measured in milliseconds from when
        a probe was sent to when its response was received or
        when it timed out.  The value of this object is reported
        as 0 when it is not possible to transmit a probe."
    ::= { pingProbeHistoryEntry 2 }

pingProbeHistoryStatus OBJECT-TYPE

    SYNTAX      OperationResponseStatus
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The result of a particular probe done by a remote host."
    ::= { pingProbeHistoryEntry 3 }
 
 pingProbeHistoryLastRC        OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The last implementation method specific reply code received.
        If the ICMP Echo capability is being used then a successful
        probe ends when an ICMP response is received that contains
        the code ICMP_ECHOREPLY(0).  The ICMP responses are defined
        normally in the ip_icmp include file."
    ::= { pingProbeHistoryEntry 4 }

pingProbeHistoryTime OBJECT-TYPE

    SYNTAX      DateAndTime
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Timestamp for when this probe result was determined."
    ::= { pingProbeHistoryEntry 5 }

-- Notification Definition section

pingProbeFailed NOTIFICATION-TYPE

      OBJECTS {
        pingCtlTargetAddressType,
        pingCtlTargetAddress,
        pingResultsOperStatus,
        pingResultsIpTargetAddressType,
        pingResultsIpTargetAddress,
        pingResultsMinRtt,
        pingResultsMaxRtt,
        pingResultsAverageRtt,
        pingResultsProbeResponses,
        pingResultsSentProbes,
        pingResultsRttSumOfSquares,
        pingResultsLastGoodProbe
      }
      STATUS  current
      DESCRIPTION
          "Generated when a probe failure is detected when the
          corresponding pingCtlTrapGeneration object is set to
          probeFailure(0) subject to the value of
          pingCtlTrapProbeFailureFilter.  The object
          pingCtlTrapProbeFailureFilter can be used to specify the
          number of successive probe failures that are required
          before this notification can be generated."
      ::= { pingNotifications 1 }

pingTestFailed NOTIFICATION-TYPE

      OBJECTS {
        pingCtlTargetAddressType,
        pingCtlTargetAddress,
        pingResultsOperStatus,
        pingResultsIpTargetAddressType,
        pingResultsIpTargetAddress,
        pingResultsMinRtt,
        pingResultsMaxRtt,
        pingResultsAverageRtt,
        pingResultsProbeResponses,
        pingResultsSentProbes,
        pingResultsRttSumOfSquares,
        pingResultsLastGoodProbe
      }
      STATUS  current
      DESCRIPTION
          "Generated when a ping test is determined to have failed
          when the corresponding pingCtlTrapGeneration object is
          set to testFailure(1).  In this instance
          pingCtlTrapTestFailureFilter should specify the number of
          probes in a test required to have failed in order to
          consider the test as failed."
      ::= { pingNotifications 2 }

pingTestCompleted NOTIFICATION-TYPE

      OBJECTS {
        pingCtlTargetAddressType,
        pingCtlTargetAddress,
        pingResultsOperStatus,
        pingResultsIpTargetAddressType,
        pingResultsIpTargetAddress,
        pingResultsMinRtt,
        pingResultsMaxRtt,
        pingResultsAverageRtt,
        pingResultsProbeResponses,
        pingResultsSentProbes,
        pingResultsRttSumOfSquares,
        pingResultsLastGoodProbe
      }
      STATUS  current
      DESCRIPTION
          "Generated at the completion of a ping test when the
          corresponding pingCtlTrapGeneration object is set to
          testCompletion(4)."
      ::= { pingNotifications 3 }
 
 -- Conformance information
 -- Compliance statements
 
 pingCompliances OBJECT IDENTIFIER ::= { pingConformance 1 }
 pingGroups      OBJECT IDENTIFIER ::= { pingConformance 2 }
 
 -- Compliance statements

pingCompliance MODULE-COMPLIANCE

    STATUS  current
    DESCRIPTION
            "The compliance statement for the DISMAN-PING-MIB."
    MODULE  -- this module
        MANDATORY-GROUPS {
                            pingGroup,
                            pingNotificationsGroup
                          }
        GROUP pingTimeStampGroup
        DESCRIPTION
            "This group is mandatory for implementations that have
            access to a system clock and are capable of setting
            the values for DateAndTime objects.  It is RECOMMENDED
            that when this group is not supported that the values
            for the objects in this group be reported as
            '0000000000000000'H."
    
        OBJECT pingMaxConcurrentRequests
        MIN-ACCESS  read-only
        DESCRIPTION
            "The agent is not required to support set
            operations to this object."
    
        OBJECT pingCtlStorageType
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is not required.  It is also allowed
            for implementations to support only the volatile
            StorageType enumeration."
    
        OBJECT pingCtlType
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is not required.  In addition, the only
            value that MUST be supported by an implementation is
            pingIcmpEcho."
    
        OBJECT pingCtlByPassRouteTable
        MIN-ACCESS  read-only
        DESCRIPTION
            "This object is not required by implementations that
            are not capable of its implementation.  The function
            represented by this object is implementable if the
            setsockopt SOL_SOCKET SO_DONTROUTE option is
            supported."
    
        OBJECT pingCtlSourceAddressType
        SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
        MIN-ACCESS  read-only
        DESCRIPTION
            "This object is not required by implementations that
            are not capable of binding the send socket with a
            source address. An implementation is only required to
            support IPv4 and IPv6 addresses."
    
        OBJECT pingCtlSourceAddress
        SYNTAX  InetAddress (SIZE(0|4|16))
        MIN-ACCESS  read-only
        DESCRIPTION
            "This object is not required by implementations that
            are not capable of binding the send socket with a
            source address. An implementation is only required to
            support IPv4 and globally unique IPv6 addresses."
    
        OBJECT pingCtlIfIndex
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is not required.   When write access is
            not supported return a 0 as the value of this object.
            A value of 0 means that the function represented by
            this option is not supported."
    
        OBJECT pingCtlDSField
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is not required.   When write access is
            not supported return a 0 as the value of this object.
            A value of 0 means that the function represented by
            this option is not supported."
    
        OBJECT pingResultsIpTargetAddressType
        SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
        DESCRIPTION
            "An implementation is only required to
            support IPv4 and IPv6 addresses."
    
        OBJECT pingResultsIpTargetAddress
        SYNTAX  InetAddress (SIZE(0|4|16))
        DESCRIPTION
            "An implementation is only required to
            support IPv4 and globally unique IPv6 addresses."
    
    ::= { pingCompliances 1 }
 
 -- MIB groupings

pingGroup OBJECT-GROUP

OBJECTS {

             pingMaxConcurrentRequests,
             pingCtlTargetAddressType,
             pingCtlTargetAddress,
             pingCtlDataSize,
             pingCtlTimeOut,
             pingCtlProbeCount,
             pingCtlAdminStatus,
             pingCtlDataFill,
             pingCtlFrequency,
             pingCtlMaxRows,
             pingCtlStorageType,
             pingCtlTrapGeneration,
             pingCtlTrapProbeFailureFilter,
             pingCtlTrapTestFailureFilter,
             pingCtlType,
             pingCtlDescr,
             pingCtlByPassRouteTable,
             pingCtlSourceAddressType,
             pingCtlSourceAddress,
             pingCtlIfIndex,
             pingCtlDSField,
             pingCtlRowStatus,
             pingResultsOperStatus,
             pingResultsIpTargetAddressType,
             pingResultsIpTargetAddress,
             pingResultsMinRtt,
             pingResultsMaxRtt,
             pingResultsAverageRtt,
             pingResultsProbeResponses,
             pingResultsSentProbes,
             pingResultsRttSumOfSquares,
             pingProbeHistoryResponse,
             pingProbeHistoryStatus,
             pingProbeHistoryLastRC
           }
   STATUS  current
   DESCRIPTION
       "The group of objects that comprise the remote ping
       capability."
    ::= { pingGroups 1 }

pingTimeStampGroup OBJECT-GROUP

   OBJECTS {
             pingResultsLastGoodProbe,
             pingProbeHistoryTime
           }
   STATUS  current
   DESCRIPTION
       "The group of DateAndTime objects."
    ::= { pingGroups 2 }

pingNotificationsGroup NOTIFICATION-GROUP

   NOTIFICATIONS {
             pingProbeFailed,
             pingTestFailed,
             pingTestCompleted
          }
   STATUS        current
   DESCRIPTION
       "The notification which are required to be supported by
       implementations of this MIB."
   ::= { pingGroups 3 }

END

4.2 DISMAN-TRACEROUTE-MIB

DISMAN-TRACEROUTE-MIB DEFINITIONS ::= BEGIN

IMPORTS

    MODULE-IDENTITY, OBJECT-TYPE, Integer32,
    Gauge32, Unsigned32, mib-2,
    NOTIFICATION-TYPE,
    OBJECT-IDENTITY
        FROM SNMPv2-SMI                  -- RFC2578
    RowStatus, StorageType,
    TruthValue, DateAndTime
        FROM SNMPv2-TC                   -- RFC2579
    MODULE-COMPLIANCE, OBJECT-GROUP,
    NOTIFICATION-GROUP
        FROM SNMPv2-CONF                 -- RFC2580
    SnmpAdminString
        FROM SNMP-FRAMEWORK-MIB          -- RFC2571
    InterfaceIndexOrZero                 -- RFC2863
        FROM IF-MIB
    InetAddressType, InetAddress
        FROM INET-ADDRESS-MIB            -- RFC2851
    OperationResponseStatus
        FROM DISMAN-PING-MIB;            -- RFC2925

traceRouteMIB MODULE-IDENTITY

    LAST-UPDATED "200009210000Z"         -- 21 September 2000

ORGANIZATION "IETF Distributed Management Working Group" CONTACT-INFO

        "Kenneth White

International Business Machines Corporation Network Computing Software Division
Research Triangle Park, NC, USA

        E-mail: wkenneth@us.ibm.com"
    DESCRIPTION
        "The Traceroute MIB (DISMAN-TRACEROUTE-MIB) provides
        access to the traceroute capability at a remote host."

-- Revision history

     REVISION     "200009210000Z"         -- 21 September 2000
     DESCRIPTION
         "Initial version, published as RFC 2925."
    
    ::= { mib-2 81 }

-- Top level structure of the MIB

 traceRouteNotifications  OBJECT IDENTIFIER ::= { traceRouteMIB 0 }
 traceRouteObjects        OBJECT IDENTIFIER ::= { traceRouteMIB 1 }
 traceRouteConformance    OBJECT IDENTIFIER ::= { traceRouteMIB 2 }

-- The registration node (point) for traceroute implementation types

 traceRouteImplementationTypeDomains OBJECT IDENTIFIER
 ::= { traceRouteMIB 3 }

traceRouteUsingUdpProbes OBJECT-IDENTITY

    STATUS      current
    DESCRIPTION
        "Indicates that an implementation is using UDP probes to
        perform the traceroute operation."
    ::= { traceRouteImplementationTypeDomains 1 }

-- Simple Object Definitions

traceRouteMaxConcurrentRequests OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "requests"
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
       "The maximum number of concurrent active traceroute requests
       that are allowed within an agent implementation.  A value
       of 0 for this object implies that there is no limit for
       the number of concurrent active requests in effect."
    DEFVAL { 10 }
    ::= { traceRouteObjects 1 }

-- Traceroute Control Table

traceRouteCtlTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF TraceRouteCtlEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines the Remote Operations Traceroute Control Table for
        providing the capability of invoking traceroute from a remote
        host.  The results of traceroute operations can be stored in
        the traceRouteResultsTable, traceRouteProbeHistoryTable, and
        the traceRouteHopsTable."
   ::= { traceRouteObjects 2 }

traceRouteCtlEntry OBJECT-TYPE

    SYNTAX      TraceRouteCtlEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines an entry in the traceRouteCtlTable.  The first
        index element, traceRouteCtlOwnerIndex, is of type
        SnmpAdminString, a textual convention that allows for
        use of the SNMPv3 View-Based Access Control Model
        (RFC 2575 [11], VACM) and allows an management
        application to identify its entries.  The second index,
        traceRouteCtlTestName (also an SnmpAdminString),
        enables the same management application to have
        multiple requests outstanding."
    INDEX {
            traceRouteCtlOwnerIndex,
            traceRouteCtlTestName
          }
    ::= { traceRouteCtlTable 1 }

TraceRouteCtlEntry ::=

SEQUENCE {

      traceRouteCtlOwnerIndex         SnmpAdminString,
      traceRouteCtlTestName           SnmpAdminString,
      traceRouteCtlTargetAddressType  InetAddressType,
      traceRouteCtlTargetAddress      InetAddress,
      traceRouteCtlByPassRouteTable   TruthValue,
      traceRouteCtlDataSize           Unsigned32,
      traceRouteCtlTimeOut            Unsigned32,
      traceRouteCtlProbesPerHop       Unsigned32,
      traceRouteCtlPort               Unsigned32,
      traceRouteCtlMaxTtl             Unsigned32,
      traceRouteCtlDSField            Unsigned32,
      traceRouteCtlSourceAddressType  InetAddressType,
      traceRouteCtlSourceAddress      InetAddress,
      traceRouteCtlIfIndex            InterfaceIndexOrZero,
      traceRouteCtlMiscOptions        SnmpAdminString,
      traceRouteCtlMaxFailures        Unsigned32,
      traceRouteCtlDontFragment       TruthValue,
      traceRouteCtlInitialTtl         Unsigned32,
      traceRouteCtlFrequency          Unsigned32,
      traceRouteCtlStorageType        StorageType,
      traceRouteCtlAdminStatus        INTEGER,
      traceRouteCtlMaxRows            Unsigned32,
      traceRouteCtlTrapGeneration     BITS,
      traceRouteCtlDescr              SnmpAdminString,
      traceRouteCtlCreateHopsEntries  TruthValue,
      traceRouteCtlType               OBJECT IDENTIFIER,
      traceRouteCtlRowStatus          RowStatus
    }

traceRouteCtlOwnerIndex OBJECT-TYPE

    SYNTAX      SnmpAdminString (SIZE(0..32))
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
       "To facilitate the provisioning of access control by a
       security administrator using the View-Based Access
       Control Model (RFC 2575, VACM) for tables in which
       multiple users may need to independently create or
       modify entries, the initial index is used as an 'owner
       index'.  Such an initial index has a syntax of
       SnmpAdminString, and can thus be trivially mapped to a
       securityName or groupName as defined in VACM, in
       accordance with a security policy.
    
       When used in conjunction with such a security policy
       all entries in the table belonging to a particular user
       (or group) will have the same value for this initial
       index.  For a given user's entries in a particular
       table, the object identifiers for the information in
       these entries will have the same subidentifiers (except
       for the 'column' subidentifier) up to the end of the
       encoded owner index. To configure VACM to permit access
       to this portion of the table, one would create
       vacmViewTreeFamilyTable entries with the value of
       vacmViewTreeFamilySubtree including the owner index
       portion, and vacmViewTreeFamilyMask 'wildcarding' the
       column subidentifier.  More elaborate configurations
       are possible."
    ::= { traceRouteCtlEntry 1 }

traceRouteCtlTestName OBJECT-TYPE

    SYNTAX      SnmpAdminString (SIZE(0..32))
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The name of a traceroute test.  This is locally unique,
        within the scope of an traceRouteCtlOwnerIndex."
    ::= { traceRouteCtlEntry 2 }

traceRouteCtlTargetAddressType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the type of host address to be used on the
        traceroute request at the remote host."
    DEFVAL { ipv4 }
    ::= { traceRouteCtlEntry 3 }

traceRouteCtlTargetAddress OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the host address used on the
        traceroute request at the remote host.  The
        host address type can be determined by the
        examining the value of the corresponding
        traceRouteCtlTargetAddressType index element.
    
        A value for this object MUST be set prior to
        transitioning its corresponding traceRouteCtlEntry to
        active(1) via traceRouteCtlRowStatus."
    ::= { traceRouteCtlEntry 4 }

traceRouteCtlByPassRouteTable OBJECT-TYPE

    SYNTAX TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
       "The purpose of this object is to optionally enable
       bypassing the route table.  If enabled, the remote
       host will bypass the normal routing tables and send
       directly to a host on an attached network.  If the
       host is not on a directly-attached network, an
       error is returned.  This option can be used to perform
       the traceroute operation to a local host through an
       interface that has no route defined (e.g., after the
    
       interface was dropped by routed)."
    DEFVAL { false }
    ::= { traceRouteCtlEntry 5 }

traceRouteCtlDataSize OBJECT-TYPE

    SYNTAX      Unsigned32 (0..65507)
    UNITS       "octets"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the size of the data portion of a traceroute
        request in octets.  A traceroute request is essentially
        transmitted by encoding a UDP datagram into a
        IP packet. So subtracting the size of a UDP header
        (8 octets) and the size of a IP header (20 octets)
        yields a maximum of 65507 octets."
    DEFVAL { 0 }
    ::= { traceRouteCtlEntry 6 }

traceRouteCtlTimeOut OBJECT-TYPE

    SYNTAX      Unsigned32 (1..60)
    UNITS       "seconds"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the time-out value, in seconds, for
        a traceroute request."
    DEFVAL { 3 }
    ::= { traceRouteCtlEntry 7 }

traceRouteCtlProbesPerHop OBJECT-TYPE

    SYNTAX      Unsigned32 (1..10)
    UNITS       "probes"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the number of times to reissue a traceroute
        request with the same time-to-live (TTL) value."
    DEFVAL { 3 }
    ::= { traceRouteCtlEntry 8 }

traceRouteCtlPort OBJECT-TYPE

    SYNTAX      Unsigned32 (1..65535)
    UNITS       "UDP Port"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the UDP port to send the traceroute
    
        request to.  Need to specify a port that is not in
        use at the destination (target) host.  The default
        value for this object is the IANA assigned port,
        33434, for the traceroute function."
    DEFVAL { 33434 }
    ::= { traceRouteCtlEntry 9 }

traceRouteCtlMaxTtl OBJECT-TYPE

    SYNTAX      Unsigned32 (1..255)
    UNITS       "time-to-live value"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the maximum time-to-live value."
    DEFVAL { 30 }
    ::= { traceRouteCtlEntry 10 }

traceRouteCtlDSField OBJECT-TYPE

    SYNTAX      Unsigned32 (0..255)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the value to store in the Differentiated
        Services (DS) Field in the IP packet used to
        encapsulate the traceroute probe.  The DS Field is
        defined as the Type of Service (TOS) octet in a IPv4
        header or as the Traffic Class octet in a IPv6 header.
    
        The value of this object must be a decimal integer
        in the range from 0 to 255.  This option can be used
        to determine what effect an explicit DS Field setting
        has on a traceroute response.  Not all values are legal
        or meaningful.  DS Field usage is often not supported
        by IP implementations.  A value of 0 means that the
     function represented by this option is not supported.
     Useful TOS octet values are probably '16' (low delay)
     and '8' ( high throughput)."
    REFERENCE
        "Refer to RFC 2474 for the definition of the
        Differentiated Services Field and to RFC 1812
        Section 5.3.2 for Type of Service (TOS)."
    DEFVAL { 0 }
    ::= { traceRouteCtlEntry 11 }

traceRouteCtlSourceAddressType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the type of the source address,
        traceRouteCtlSourceAddress, to be used at a remote host
        when performing a traceroute operation."
    DEFVAL { unknown }
    ::= { traceRouteCtlEntry 12 }

traceRouteCtlSourceAddress OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Use the specified IP address (which must be given
        as an IP number, not a hostname) as the source
        address in outgoing probe packets. On hosts with
        more than one IP address, this option can be used
        to force the source address to be something other
        than the primary IP address of the interface the
        probe packet is sent on.  If the IP address is not
        one of this machine's interface addresses, an error
        is returned and nothing is sent.  A zero length
        octet string value for this object disables source
        address specification.
    
        The address type (InetAddressType) that relates to
        this object is specified by the corresponding value
        of traceRouteCtlSourceAddressType."
    DEFVAL { ''H }
    ::= { traceRouteCtlEntry 13 }

traceRouteCtlIfIndex OBJECT-TYPE

    SYNTAX      InterfaceIndexOrZero
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Setting this object to an interface's ifIndex prior
        to starting a remote traceroute operation directs
        the traceroute probes to be transmitted over the
        specified interface.  A value of zero for this object
        implies that this option is not enabled."
    DEFVAL { 0 }
    ::= { traceRouteCtlEntry 14 }

traceRouteCtlMiscOptions OBJECT-TYPE

    SYNTAX      SnmpAdminString
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Enables an application to specify implementation
        dependent options."
    DEFVAL { ''H }
    ::= { traceRouteCtlEntry 15 }

traceRouteCtlMaxFailures OBJECT-TYPE

    SYNTAX      Unsigned32 (0..255)
    UNITS       "timeouts"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The value of this object indicates the maximum number
        of consecutive timeouts allowed before terminating
        a remote traceroute request.  A value of either 255 (maximum
        hop count/possible TTL value) or a 0 indicates that the
        function of terminating a remote traceroute request when a
        specific number of successive timeouts are detected is
        disabled."
    DEFVAL { 5 }
    ::= { traceRouteCtlEntry 16 }

traceRouteCtlDontFragment OBJECT-TYPE

    SYNTAX         TruthValue
    MAX-ACCESS     read-create
    STATUS         current
    DESCRIPTION
        "This object enables setting of the don't fragment flag (DF)
        in the IP header for a probe.  Use of this object enables
        performing a manual PATH MTU test."
    DEFVAL  { false }
    ::= { traceRouteCtlEntry 17 }

traceRouteCtlInitialTtl OBJECT-TYPE

    SYNTAX         Unsigned32 (0..255)
    MAX-ACCESS     read-create
    STATUS         current
    DESCRIPTION
        "The value of this object specifies the initial TTL value to
        use.  This enables bypassing the initial (often well known)
        portion of a path."
    DEFVAL { 1 }
    ::= { traceRouteCtlEntry 18 }
 
 traceRouteCtlFrequency  OBJECT-TYPE
    SYNTAX      Unsigned32
    UNITS       "seconds"
    MAX-ACCESS  read-create
    STATUS      current

DESCRIPTION

"The number of seconds to wait before repeating a traceroute test as defined by the value of the various objects in the corresponding row.

The number of hops in a single traceroute test is determined by the value of the corresponding traceRouteCtlProbesPerHop object. After a
single test completes the number of seconds as defined by the value of traceRouteCtlFrequency MUST elapse before the next traceroute test is started.

        A value of 0 for this object implies that the test
        as defined by the corresponding entry will not be
        repeated."
    DEFVAL { 0 }
    ::= { traceRouteCtlEntry 19 }

traceRouteCtlStorageType OBJECT-TYPE

    SYNTAX      StorageType
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The storage type for this conceptual row.
        Conceptual rows having the value 'permanent' need not
        allow write-access to any columnar objects in the row."
    DEFVAL { nonVolatile }
    ::= { traceRouteCtlEntry 20 }

traceRouteCtlAdminStatus OBJECT-TYPE

    SYNTAX      INTEGER {
                          enabled(1), -- operation should be started
                          disabled(2) -- operation should be stopped
                        }
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Reflects the desired state that an traceRouteCtlEntry
        should be in:
    
           enabled(1)  - Attempt to activate the test as defined by
                         this traceRouteCtlEntry.
           disabled(2) - Deactivate the test as defined by this
                         traceRouteCtlEntry.

Refer to the corresponding traceRouteResultsOperStatus to

determine the operational state of the test defined by

this entry."

     DEFVAL { disabled }
    ::= { traceRouteCtlEntry 21 }

traceRouteCtlDescr OBJECT-TYPE

    SYNTAX      SnmpAdminString
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The purpose of this object is to provide a
        descriptive name of the remote traceroute
        test."
    DEFVAL { '00'H }
    ::= { traceRouteCtlEntry 22 }

traceRouteCtlMaxRows OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "rows"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
    
        "The maximum number of entries allowed in the
        traceRouteProbeHistoryTable.  An implementation of
        this MIB will remove the oldest entry in the
        traceRouteProbeHistoryTable to allow the addition
        of an new entry once the number of rows in the
        traceRouteProbeHistoryTable reaches this value.

Old entries are not removed when a new test is
started. Entries are added to the traceRouteProbeHistoryTable until traceRouteCtlMaxRows is reached before entries begin to be removed.

        A value of 0 for this object disables creation of
        traceRouteProbeHistoryTable entries."
    DEFVAL      { 50 }
    ::= { traceRouteCtlEntry 23 }

traceRouteCtlTrapGeneration OBJECT-TYPE

    SYNTAX      BITS {
                  pathChange(0),
                  testFailure(1),
                  testCompletion(2)
                }
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The value of this object determines when and if to
        to generate a notification for this entry:
        pathChange(0)     - Generate a traceRoutePathChange
            notification when the current path varies from a
            previously determined path.
        testFailure(1)    - Generate a traceRouteTestFailed
            notification when the full path to a target
            can't be determined.
        testCompletion(2) - Generate a traceRouteTestCompleted
            notification when the path to a target has been
            determined.
    
        The value of this object defaults to zero, indicating
        that none of the above options have been selected."
    ::= { traceRouteCtlEntry 24 }

traceRouteCtlCreateHopsEntries OBJECT-TYPE

    SYNTAX      TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The current path for a traceroute test is kept in the
        traceRouteHopsTable on a per hop basis when the value of
        this object is true(1)."
    DEFVAL { false }
    ::= { traceRouteCtlEntry 25 }

traceRouteCtlType OBJECT-TYPE

    SYNTAX      OBJECT IDENTIFIER
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The value of this object is used either to report or
        select the implementation method to be used for
        performing a traceroute operation. The value of this
        object may be selected from
        traceRouteImplementationTypeDomains.
    
        Additional implementation types should be allocated as
        required by implementers of the DISMAN-TRACEROUTE-MIB
        under their enterprise specific registration point and
        not beneath traceRouteImplementationTypeDomains."
    DEFVAL { traceRouteUsingUdpProbes }
    ::= { traceRouteCtlEntry 26 }

traceRouteCtlRowStatus OBJECT-TYPE

    SYNTAX      RowStatus
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION

"This object allows entries to be created and deleted in the traceRouteCtlTable. Deletion of an entry in this table results in all corresponding (same traceRouteCtlOwnerIndex and traceRouteCtlTestName index values) traceRouteResultsTable, traceRouteProbeHistoryTable, and traceRouteHopsTable entries being deleted.

A value MUST be specified for traceRouteCtlTargetAddress prior to a transition to active(1) state being
accepted.

Activation of a remote traceroute operation is controlled via traceRouteCtlAdminStatus and not by transitioning of this object's value to active(1).

Transitions in and out of active(1) state are not allowed while an entry's traceRouteResultsOperStatus is active(1) with the exception that deletion of
an entry in this table by setting its RowStatus
object to destroy(6) will stop an active traceroute operation.

        The operational state of an traceroute operation
        can be determined by examination of the corresponding
        traceRouteResultsOperStatus object."
    REFERENCE
        "See definition of RowStatus in RFC 2579, 'Textual
        Conventions for SMIv2.'"
    ::= { traceRouteCtlEntry 27 }

-- Traceroute Results Table

traceRouteResultsTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF TraceRouteResultsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines the Remote Operations Traceroute Results Table for
        keeping track of the status of a traceRouteCtlEntry.
   
        An entry is added to the traceRouteResultsTable when an
        traceRouteCtlEntry is started by successful transition
        of its traceRouteCtlAdminStatus object to enabled(1).
        An entry is removed from the traceRouteResultsTable when
        its corresponding traceRouteCtlEntry is deleted."
   ::= { traceRouteObjects 3 }

traceRouteResultsEntry OBJECT-TYPE

    SYNTAX      TraceRouteResultsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines an entry in the traceRouteResultsTable.  The
        traceRouteResultsTable has the same indexing as the
        traceRouteCtlTable in order for a traceRouteResultsEntry
        to correspond to the traceRouteCtlEntry that caused it to
        be created."
    INDEX {
            traceRouteCtlOwnerIndex,
            traceRouteCtlTestName
          }
    ::= { traceRouteResultsTable 1 }

TraceRouteResultsEntry ::=

    SEQUENCE {
      traceRouteResultsOperStatus       INTEGER,
      traceRouteResultsCurHopCount      Gauge32,
      traceRouteResultsCurProbeCount    Gauge32,
      traceRouteResultsIpTgtAddrType    InetAddressType,
      traceRouteResultsIpTgtAddr        InetAddress,
      traceRouteResultsTestAttempts     Unsigned32,
      traceRouteResultsTestSuccesses    Unsigned32,
      traceRouteResultsLastGoodPath     DateAndTime
    }

traceRouteResultsOperStatus OBJECT-TYPE

    SYNTAX      INTEGER {
                          enabled(1), -- test is in progress
                          disabled(2) -- test has stopped
                        }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Reflects the operational state of an traceRouteCtlEntry:
    
           enabled(1)  - Test is active.
           disabled(2) - Test has stopped."
    ::= { traceRouteResultsEntry 1 }

traceRouteResultsCurHopCount OBJECT-TYPE

    SYNTAX      Gauge32
    UNITS       "hops"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Reflects the current TTL value (range from 1 to
        255) for a remote traceroute operation.
        Maximum TTL value is determined by
        traceRouteCtlMaxTtl."
    ::= { traceRouteResultsEntry 2 }

traceRouteResultsCurProbeCount OBJECT-TYPE

    SYNTAX      Gauge32
    UNITS       "probes"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Reflects the current probe count (1..10) for
        a remote traceroute operation. The maximum
        probe count is determined by
        traceRouteCtlProbesPerHop."
    ::= { traceRouteResultsEntry 3 }

traceRouteResultsIpTgtAddrType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This objects indicates the type of address stored
        in the corresponding traceRouteResultsIpTgtAddr
        object."
    ::= { traceRouteResultsEntry 4 }

traceRouteResultsIpTgtAddr OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This objects reports the IP address associated
        with a traceRouteCtlTargetAddress value when the
        destination address is specified as a DNS name.
        The value of this object should be a zero length
        octet string when a DNS name is not specified or
        when a specified DNS name fails to resolve."
    ::= { traceRouteResultsEntry 5 }

traceRouteResultsTestAttempts OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "tests"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The current number of attempts to determine a path
    
        to a target.  The value of this object MUST be started
        at 0."
    ::= { traceRouteResultsEntry 6 }

traceRouteResultsTestSuccesses OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "tests"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The current number of attempts to determine a path
        to a target that have succeeded.  The value of this
        object MUST be reported as 0 when no attempts have
        succeeded."
    ::= { traceRouteResultsEntry 7 }

traceRouteResultsLastGoodPath OBJECT-TYPE

    SYNTAX      DateAndTime
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The date and time when the last complete path
        was determined."
    ::= { traceRouteResultsEntry 8 }

-- Trace Route Probe History Table

traceRouteProbeHistoryTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF TraceRouteProbeHistoryEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines the Remote Operations Traceroute Results Table for
        storing the results of a traceroute operation.
   
        An implementation of this MIB will remove the oldest
        entry in the traceRouteProbeHistoryTable to allow the
        addition of an new entry once the number of rows in
        the traceRouteProbeHistoryTable reaches the value specified
        by traceRouteCtlMaxRows."
   ::= { traceRouteObjects 4 }

traceRouteProbeHistoryEntry OBJECT-TYPE

    SYNTAX      TraceRouteProbeHistoryEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines a table for storing the results of a traceroute

operation. Entries in this table are limited by
the value of the corresponding traceRouteCtlMaxRows
object.

        The first two index elements identify the
        traceRouteCtlEntry that a traceRouteProbeHistoryEntry
        belongs to.  The third index element selects a single
        traceroute operation result.  The fourth and fifth indexes
        select the hop and the probe for a particular
        traceroute operation."
    INDEX {
             traceRouteCtlOwnerIndex,
             traceRouteCtlTestName,
             traceRouteProbeHistoryIndex,
             traceRouteProbeHistoryHopIndex,
             traceRouteProbeHistoryProbeIndex
          }
    ::= { traceRouteProbeHistoryTable 1 }

TraceRouteProbeHistoryEntry ::=

    SEQUENCE {
      traceRouteProbeHistoryIndex         Unsigned32,
      traceRouteProbeHistoryHopIndex      Unsigned32,
      traceRouteProbeHistoryProbeIndex    Unsigned32,
      traceRouteProbeHistoryHAddrType     InetAddressType,
      traceRouteProbeHistoryHAddr         InetAddress,
      traceRouteProbeHistoryResponse      Unsigned32,
      traceRouteProbeHistoryStatus        OperationResponseStatus,
      traceRouteProbeHistoryLastRC        Integer32,
      traceRouteProbeHistoryTime          DateAndTime
    }

traceRouteProbeHistoryIndex OBJECT-TYPE

    SYNTAX      Unsigned32 (1..'ffffffff'h)
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "An entry in this table is created when the result of
        a traceroute probe is determined.  The initial 2 instance
        identifier index values identify the traceRouteCtlEntry
        that a probe result (traceRouteProbeHistoryEntry) belongs
        to.  An entry is removed from this table when
        its corresponding traceRouteCtlEntry is deleted.

An implementation MUST start assigning traceRouteProbeHistoryIndex values at 1 and wrap after exceeding the maximum possible value as defined by the limit of this object ('ffffffff'h)."

    ::= { traceRouteProbeHistoryEntry 1 }

traceRouteProbeHistoryHopIndex OBJECT-TYPE

    SYNTAX      Unsigned32 (1..255)
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
       "Indicates which hop in a traceroute path that the probe's
       results are for.  The value of this object is initially
       determined by the value of traceRouteCtlInitialTtl."
    ::= { traceRouteProbeHistoryEntry 2 }

traceRouteProbeHistoryProbeIndex OBJECT-TYPE

    SYNTAX      Unsigned32 (1..10)
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
       "Indicates the index of a probe for a particular
       hop in a traceroute path.  The number of probes per
       hop is determined by the value of the corresponding
       traceRouteCtlProbesPerHop object."
    ::= { traceRouteProbeHistoryEntry 3 }

traceRouteProbeHistoryHAddrType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This objects indicates the type of address stored
        in the corresponding traceRouteProbeHistoryHAddr
        object."
    ::= { traceRouteProbeHistoryEntry 4 }

traceRouteProbeHistoryHAddr OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
       "The address of a hop in a traceroute path.  This object
       is not allowed to be a DNS name.  The value of the
       corresponding object, traceRouteProbeHistoryHAddrType,
       indicates this object's IP address type."
    ::= { traceRouteProbeHistoryEntry 5 }

traceRouteProbeHistoryResponse OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "milliseconds"
    MAX-ACCESS  read-only
    
    STATUS      current
    DESCRIPTION
        "The amount of time measured in milliseconds from when
        a probe was sent to when its response was received or
        when it timed out.  The value of this object is reported
        as 0 when it is not possible to transmit a probe."
    ::= { traceRouteProbeHistoryEntry 6 }

traceRouteProbeHistoryStatus OBJECT-TYPE

    SYNTAX      OperationResponseStatus
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The result of a traceroute operation made by a remote
        host for a particular probe."
    ::= { traceRouteProbeHistoryEntry 7 }

traceRouteProbeHistoryLastRC OBJECT-TYPE

    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The last implementation method specific reply code received.
    
        Traceroute is usually implemented by transmitting a series of
        probe packets with increasing time-to-live values.  A probe
        packet is a UDP datagram encapsulated into an IP packet.
        Each hop in a path to the target (destination) host rejects
        the probe packets (probe's TTL too small, ICMP reply) until
        either the maximum TTL is exceeded or the target host is
        received."
    ::= { traceRouteProbeHistoryEntry 8 }

traceRouteProbeHistoryTime OBJECT-TYPE

    SYNTAX      DateAndTime
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Timestamp for when this probe results were determined."
    ::= { traceRouteProbeHistoryEntry 9 }
 
 -- Traceroute Hop Results Table

traceRouteHopsTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF TraceRouteHopsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines the Remote Operations Traceroute Hop Table for
        keeping track of the results of traceroute tests on a
        per hop basis."
    ::= { traceRouteObjects 5 }

traceRouteHopsEntry OBJECT-TYPE

    SYNTAX      TraceRouteHopsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines an entry in the traceRouteHopsTable.
    
        The first two index elements identify the
        traceRouteCtlEntry that a traceRouteHopsEntry
        belongs to.  The third index element,
        traceRouteHopsHopIndex, selects a
        hop in a traceroute path."
    INDEX {
            traceRouteCtlOwnerIndex,
            traceRouteCtlTestName,
            traceRouteHopsHopIndex
          }
    ::= { traceRouteHopsTable 1 }

TraceRouteHopsEntry ::=

SEQUENCE {

        traceRouteHopsHopIndex         Unsigned32,
        traceRouteHopsIpTgtAddressType InetAddressType,
        traceRouteHopsIpTgtAddress     InetAddress,
        traceRouteHopsMinRtt           Unsigned32,
        traceRouteHopsMaxRtt           Unsigned32,
        traceRouteHopsAverageRtt       Unsigned32,
        traceRouteHopsRttSumOfSquares  Unsigned32,
        traceRouteHopsSentProbes       Unsigned32,
        traceRouteHopsProbeResponses   Unsigned32,
        traceRouteHopsLastGoodProbe    DateAndTime
      }

traceRouteHopsHopIndex OBJECT-TYPE

    SYNTAX      Unsigned32
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Specifies the hop index for a traceroute hop.  Values
        for this object with respect to the same
        traceRouteCtlOwnerIndex and traceRouteCtlTestName
        MUST start at 1 and increase monotonically.

The traceRouteHopsTable keeps the current traceroute path per traceRouteCtlEntry if enabled by
setting the corresponding traceRouteCtlCreateHopsEntries to true(1).

        All hops (traceRouteHopsTable entries) in a traceroute
        path MUST be updated at the same time when a traceroute
        operation completes.  Care needs to be applied when either
        a path changes or can't be determined.  The initial portion
        of the path, up to the first hop change, MUST retain the
        same traceRouteHopsHopIndex values.  The remaining portion
        of the path SHOULD be assigned new traceRouteHopsHopIndex
        values."
    ::= { traceRouteHopsEntry 1 }

traceRouteHopsIpTgtAddressType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This objects indicates the type of address stored
        in the corresponding traceRouteHopsIpTargetAddress
        object."
    ::= { traceRouteHopsEntry 2 }

traceRouteHopsIpTgtAddress OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This object reports the IP address associated with
        the hop.  A value for this object should be reported
        as a numeric IP address and not as a DNS name."
    ::= { traceRouteHopsEntry 3 }

traceRouteHopsMinRtt OBJECT-TYPE

    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The minimum traceroute round-trip-time (RTT) received for
        this hop.  A value of 0 for this object implies that no
        RTT has been received."
    ::= { traceRouteHopsEntry 4 }

traceRouteHopsMaxRtt OBJECT-TYPE

    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    
    STATUS      current
    DESCRIPTION
        "The maximum traceroute round-trip-time (RTT) received for
        this hop.  A value of 0 for this object implies that no
        RTT has been received."
    ::= { traceRouteHopsEntry 5 }

traceRouteHopsAverageRtt OBJECT-TYPE

    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The current average traceroute round-trip-time (RTT) for
        this hop."
    ::= { traceRouteHopsEntry 6 }

traceRouteHopsRttSumOfSquares OBJECT-TYPE

    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This object contains the sum of all traceroute responses
        received for this hop.  Its purpose is to enable standard
        deviation calculation."
    ::= { traceRouteHopsEntry 7 }

traceRouteHopsSentProbes OBJECT-TYPE

    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The value of this object reflects the number of probes sent
        for this hop during this traceroute test.  The value of this
        object should start at 0."
    ::= { traceRouteHopsEntry 8 }

traceRouteHopsProbeResponses OBJECT-TYPE

    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Number of responses received for this hop during this
        traceroute test.  This value of this object should start
        at 0."
    ::= { traceRouteHopsEntry 9 }

traceRouteHopsLastGoodProbe OBJECT-TYPE

    SYNTAX      DateAndTime
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Date and time was the last response was received for a probe
        for this hop during this traceroute test."
    ::= { traceRouteHopsEntry 10 }

-- Notification Definition section

traceRoutePathChange NOTIFICATION-TYPE

      OBJECTS {
        traceRouteCtlTargetAddressType,
        traceRouteCtlTargetAddress,
        traceRouteResultsIpTgtAddrType,
        traceRouteResultsIpTgtAddr
      }
      STATUS  current
      DESCRIPTION
          "The path to a target has changed."
      ::= { traceRouteNotifications 1 }

traceRouteTestFailed NOTIFICATION-TYPE

      OBJECTS {
        traceRouteCtlTargetAddressType,
        traceRouteCtlTargetAddress,
        traceRouteResultsIpTgtAddrType,
        traceRouteResultsIpTgtAddr
      }
      STATUS  current
      DESCRIPTION
          "Could not determine the path to a target."
      ::= { traceRouteNotifications 2 }

traceRouteTestCompleted NOTIFICATION-TYPE

      OBJECTS {
        traceRouteCtlTargetAddressType,
        traceRouteCtlTargetAddress,
        traceRouteResultsIpTgtAddrType,
        traceRouteResultsIpTgtAddr
      }
      STATUS  current
      DESCRIPTION
          "The path to a target has just been determined."
      ::= { traceRouteNotifications 3 }
 
 -- Conformance information
 -- Compliance statements
 traceRouteCompliances OBJECT IDENTIFIER ::= { traceRouteConformance 1 }
 traceRouteGroups      OBJECT IDENTIFIER ::= { traceRouteConformance 2 }
 
 -- Compliance statements

traceRouteCompliance MODULE-COMPLIANCE

    STATUS  current
    DESCRIPTION
            "The compliance statement for the DISMAN-TRACEROUTE-MIB."
    MODULE  -- this module
        MANDATORY-GROUPS {
                            traceRouteGroup
                          }
        GROUP traceRouteTimeStampGroup
        DESCRIPTION
            "This group is mandatory for implementations that have
            access to a system clock and are capable of setting
            the values for DateAndTime objects."

GROUP traceRouteNotificationsGroup
DESCRIPTION

"This group defines a collection of optional notifications."

GROUP traceRouteHopsTableGroup
DESCRIPTION

"This group lists the objects that make up a traceRouteHopsEntry. Support of the traceRouteHopsTable is optional."

        OBJECT traceRouteMaxConcurrentRequests
        MIN-ACCESS  read-only
        DESCRIPTION
            "The agent is not required to support SET
            operations to this object."
        
        OBJECT traceRouteCtlByPassRouteTable
        MIN-ACCESS  read-only
        DESCRIPTION
            "This object is not required by implementations that
            are not capable of its implementation.  The function
            represented by this object is implementable if the
            setsockopt SOL_SOCKET SO_DONTROUTE option is
            supported."
        
        OBJECT traceRouteCtlSourceAddressType
        SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
        MIN-ACCESS  read-only

DESCRIPTION

"This object is not required by implementations that are not capable of binding the send socket with a source address. An implementation is only required to support IPv4 and IPv6 addresses."

        OBJECT traceRouteCtlSourceAddress
        SYNTAX  InetAddress (SIZE(0|4|16))
        MIN-ACCESS  read-only
        DESCRIPTION
            "This object is not required by implementations that
            are not capable of binding the send socket with a
            source address. An implementation is only required to
            support IPv4 and globally unique IPv6 addresses."
        
        OBJECT traceRouteCtlIfIndex
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is not required.  When write access is
            not supported return a 0 as the value of this object.
            A value of 0 implies that the function represented by
            this option is not supported."
        
        OBJECT traceRouteCtlMiscOptions
        MIN-ACCESS  read-only
        DESCRIPTION
            "Support of this object is optional.  When not
            supporting do not allow write access and return a
            zero length octet string as the value of the object."
        
        OBJECT traceRouteCtlStorageType
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is not required.  It is also allowed
            for implementations to support only the volatile
            StorageType enumeration."
        
        OBJECT traceRouteCtlDSField
        MIN-ACCESS  read-only
        DESCRIPTION
            "Write access is not required.   When write access is
            not supported return a 0 as the value of this object.
            A value of 0 implies that the function represented by
            this option is not supported."
        
        OBJECT traceRouteCtlType
        MIN-ACCESS  read-only
        DESCRIPTION

"Write access is not required. In addition, the only

value that is RECOMMENDED to be supported by an

implementation is traceRouteUsingUdpProbes."

        OBJECT traceRouteResultsIpTgtAddrType
        SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
        DESCRIPTION
            "An implementation should only support IPv4 and
            globally unique IPv6 address values for this object."
        
        OBJECT traceRouteResultsIpTgtAddr
        SYNTAX  InetAddress (SIZE(0|4|16))
        DESCRIPTION
            "An implementation should only support IPv4 and
            globally unique IPv6 address values for this object."
        
        OBJECT traceRouteProbeHistoryHAddrType
        SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
        DESCRIPTION
            "An implementation should only support IPv4 and
            globally unique IPv6 address values for this object."
        OBJECT traceRouteProbeHistoryHAddr
        SYNTAX  InetAddress (SIZE(0|4|16))
        DESCRIPTION
            "An implementation should only support IPv4 and
            globally unique IPv6 address values for this object."
        
        OBJECT traceRouteHopsIpTgtAddressType
        SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
        DESCRIPTION
            "An implementation should only support IPv4 and
            globally unique IPv6 address values for this object."
    
        OBJECT traceRouteHopsIpTgtAddress
        SYNTAX  InetAddress (SIZE(0|4|16))
        DESCRIPTION
            "An implementation should only support IPv4 and
            globally unique IPv6 address values for this object."
    ::= { traceRouteCompliances 1 }
 
 -- MIB groupings

traceRouteGroup OBJECT-GROUP

OBJECTS {

traceRouteMaxConcurrentRequests, traceRouteCtlTargetAddressType, traceRouteCtlTargetAddress, traceRouteCtlByPassRouteTable,

             traceRouteCtlDataSize,
             traceRouteCtlTimeOut,
             traceRouteCtlProbesPerHop,
             traceRouteCtlPort,
             traceRouteCtlMaxTtl,
             traceRouteCtlDSField,
             traceRouteCtlSourceAddressType,
             traceRouteCtlSourceAddress,
             traceRouteCtlIfIndex,
             traceRouteCtlMiscOptions,
             traceRouteCtlMaxFailures,
             traceRouteCtlDontFragment,
             traceRouteCtlInitialTtl,
             traceRouteCtlFrequency,
             traceRouteCtlStorageType,
             traceRouteCtlAdminStatus,
             traceRouteCtlMaxRows,
             traceRouteCtlTrapGeneration,
             traceRouteCtlDescr,
             traceRouteCtlCreateHopsEntries,
             traceRouteCtlType,
             traceRouteCtlRowStatus,
             traceRouteResultsOperStatus,
             traceRouteResultsCurHopCount,
             traceRouteResultsCurProbeCount,
             traceRouteResultsIpTgtAddrType,
             traceRouteResultsIpTgtAddr,
             traceRouteResultsTestAttempts,
             traceRouteResultsTestSuccesses,
             traceRouteProbeHistoryHAddrType,
             traceRouteProbeHistoryHAddr,
             traceRouteProbeHistoryResponse,
             traceRouteProbeHistoryStatus,
             traceRouteProbeHistoryLastRC
          }
   STATUS  current
   DESCRIPTION
       "The group of objects that comprise the remote traceroute
       operation."
   ::= { traceRouteGroups 1 }

traceRouteTimeStampGroup OBJECT-GROUP

   OBJECTS {
             traceRouteResultsLastGoodPath,
             traceRouteProbeHistoryTime
           }
   STATUS  current
   DESCRIPTION
       "The group of DateAndTime objects."
    ::= { traceRouteGroups 2 }

traceRouteNotificationsGroup NOTIFICATION-GROUP

   NOTIFICATIONS {
             traceRoutePathChange,
             traceRouteTestFailed,
             traceRouteTestCompleted
          }
   STATUS   current
   DESCRIPTION
       "The notifications which are required to be supported by
       implementations of this MIB."
   ::= { traceRouteGroups 3 }

traceRouteHopsTableGroup OBJECT-GROUP

   OBJECTS {
             traceRouteHopsIpTgtAddressType,
             traceRouteHopsIpTgtAddress,
             traceRouteHopsMinRtt,
             traceRouteHopsMaxRtt,
             traceRouteHopsAverageRtt,
             traceRouteHopsRttSumOfSquares,
             traceRouteHopsSentProbes,
             traceRouteHopsProbeResponses,
             traceRouteHopsLastGoodProbe
           }
    STATUS   current
    DESCRIPTION
        "The group of objects that comprise the traceRouteHopsTable."
  ::= { traceRouteGroups 4 }

END

4.3 DISMAN-NSLOOKUP-MIB

DISMAN-NSLOOKUP-MIB DEFINITIONS ::= BEGIN

IMPORTS

    MODULE-IDENTITY, OBJECT-TYPE,
    Unsigned32, mib-2, Integer32
        FROM SNMPv2-SMI                  -- RFC2578
    RowStatus
        FROM SNMPv2-TC                   -- RFC2579
    MODULE-COMPLIANCE, OBJECT-GROUP
        FROM SNMPv2-CONF                 -- RFC2580
    SnmpAdminString
        FROM SNMP-FRAMEWORK-MIB          -- RFC2571

InetAddressType, InetAddress

        FROM INET-ADDRESS-MIB;           -- RFC2851

lookupMIB MODULE-IDENTITY

    LAST-UPDATED "200009210000Z"         -- 21 September 2000
    ORGANIZATION "IETF Distributed Management Working Group"
    CONTACT-INFO
        "Kenneth White

International Business Machines Corporation Network Computing Software Division
Research Triangle Park, NC, USA

        E-mail: wkenneth@us.ibm.com"
    DESCRIPTION
        "The Lookup MIB (DISMAN-NSLOOKUP-MIB) enables determination
        of either the name(s) corresponding to a host address or of
        the address(es) associated with a host name at a remote host."

-- Revision history

     REVISION     "200009210000Z"         -- 21 September 2000
     DESCRIPTION
         "Initial version, published as RFC 2925."
    
    ::= { mib-2 82 }

-- Top level structure of the MIB

 lookupObjects        OBJECT IDENTIFIER ::= { lookupMIB 1 }
 lookupConformance    OBJECT IDENTIFIER ::= { lookupMIB 2 }

-- Simple Object Definitions

lookupMaxConcurrentRequests OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "requests"
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
       "The maximum number of concurrent active lookup requests
       that are allowed within an agent implementation.  A value
       of 0 for this object implies that there is no limit for
       the number of concurrent active requests in effect."
    DEFVAL { 10 }
    ::= { lookupObjects 1 }

lookupPurgeTime OBJECT-TYPE

    SYNTAX      Unsigned32 (0..86400)
    UNITS       "seconds"
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
       "The amount of time to wait before automatically
       deleting an entry in the lookupCtlTable and any
       dependent lookupResultsTable entries
       after the lookup operation represented by an
       lookupCtlEntry has completed.
    
       An lookupCtEntry is considered complete
       when its lookupCtlOperStatus object has a
       value of completed(3)."
    DEFVAL { 900 }  -- 15 minutes as default
    ::= { lookupObjects 2 }

-- Lookup Control Table

lookupCtlTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF LookupCtlEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines the Lookup Control Table for providing
        the capability of performing a lookup operation,
        gethostbyname or gethostbyaddr, from a remote host."
   ::= { lookupObjects 3 }

lookupCtlEntry OBJECT-TYPE

    SYNTAX      LookupCtlEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines an entry in the lookupCtlTable.  A
        lookupCtlEntry is initially indexed by
        lookupCtlOwnerIndex, which is of type SnmpAdminString,
        a textual convention that allows for use of the SNMPv3
        View-Based Access Control Model (RFC 2575 [11], VACM)
        and also allows an management application to identify
        its entries.  The second index element,
        lookupCtlOperationName, enables the same
        lookupCtlOwnerIndex entity to have multiple outstanding
        requests.

The value of lookupCtlTargetAddressType determines which

lookup function to perform. Specification of dns(16)

        as the value of this index implies that the gethostbyname
        function should be performed to determine the numeric
        addresses associated with a symbolic name via
        lookupResultsTable entries.  Use of a value of either
        ipv4(1) or ipv6(2) implies that the gethostbyaddr function
        should be performed to determine the symbolic name(s)
        associated with a numeric address at a remote host."
    INDEX {
             lookupCtlOwnerIndex,
             lookupCtlOperationName
          }
    ::= { lookupCtlTable 1 }

LookupCtlEntry ::=

    SEQUENCE {
        lookupCtlOwnerIndex         SnmpAdminString,
        lookupCtlOperationName      SnmpAdminString,
        lookupCtlTargetAddressType  InetAddressType,
        lookupCtlTargetAddress      InetAddress,
        lookupCtlOperStatus         INTEGER,
        lookupCtlTime               Unsigned32,
        lookupCtlRc                 Integer32,
        lookupCtlRowStatus          RowStatus
    }

lookupCtlOwnerIndex OBJECT-TYPE

    SYNTAX      SnmpAdminString (SIZE(0..32))
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
    
       "To facilitate the provisioning of access control by a
       security administrator using the View-Based Access
       Control Model (RFC 2575, VACM) for tables in which
       multiple users may need to independently create or
       modify entries, the initial index is used as an 'owner
       index'.  Such an initial index has a syntax of
       SnmpAdminString, and can thus be trivially mapped to a
       securityName or groupName as defined in VACM, in
       accordance with a security policy.

When used in conjunction with such a security policy all entries in the table belonging to a particular user (or group) will have the same value for this initial index. For a given user's entries in a particular table, the object identifiers for the information in these entries will have the same subidentifiers (except for the 'column' subidentifier) up to the end of the encoded owner index. To configure VACM to permit access to this

       portion of the table, one would create
       vacmViewTreeFamilyTable entries with the value of
       vacmViewTreeFamilySubtree including the owner index
       portion, and vacmViewTreeFamilyMask 'wildcarding' the
       column subidentifier.  More elaborate configurations
       are possible."
    ::= { lookupCtlEntry 1 }

lookupCtlOperationName OBJECT-TYPE

    SYNTAX      SnmpAdminString (SIZE(0..32))
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The name of a lookup operation.  This is locally unique,
        within the scope of an lookupCtlOwnerIndex."
    ::= { lookupCtlEntry 2 }

lookupCtlTargetAddressType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the type of address for either performing a
        gethostbyname or a gethostbyaddr function at a remote host.
        Specification of dns(16) as the value for this object
        means that the gethostbyname function should be performed
        to return one or more numeric addresses.  Use of a value
        of either ipv4(1) or ipv6(2) means that the gethostbyaddr
        function should be used to return the symbolic names
        associated with a remote host."
    ::= { lookupCtlEntry 3 }

lookupCtlTargetAddress OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies the address used for a resolver lookup at a
        remote host.  The corresponding lookupCtlAddressType
        objects determines its type as well as the function
        that can be requested.
    
        A value for this object MUST be set prior to
        transitioning its corresponding lookupCtlEntry to
        active(1) via lookupCtlRowStatus."
    ::= { lookupCtlEntry 4 }
 
 lookupCtlOperStatus OBJECT-TYPE
    SYNTAX      INTEGER {
                   notStarted(2), -- operation has not started
                   completed(3)   -- operation is done
                }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Reflects the operational state of an lookupCtlEntry:
 
           enabled(1)    - Operation is active.
           notStarted(2) - Operation has not been enabled.
           completed(3)  - Operation has completed.
 
         An operation is automatically enabled(1) when its
         lookupCtlRowStatus object is transitioned to active(1)
         status.  Until this occurs lookupCtlOperStatus MUST
         report a value of notStarted(2).  After the lookup
         operation completes (success or failure) the value
         for lookupCtlOperStatus MUST be transitioned to
         completed(3)."
    ::= { lookupCtlEntry 5 }

lookupCtlTime OBJECT-TYPE

    SYNTAX      Unsigned32
    UNITS       "milliseconds"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Reports the number of milliseconds that a lookup
        operation required to be completed at a remote host.
        Completed means operation failure as well as
        success."
    ::= { lookupCtlEntry 6 }

lookupCtlRc OBJECT-TYPE

    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The system specific return code from a lookup
        operation.  All implementations MUST return a value
        of 0 for this object when the remote lookup
        operation succeeds.  A non-zero value for this
        objects indicates failure.  It is recommended that
        implementations that support errno use it as the
        value of this object to aid a management
        application in determining the cause of failure."
    ::= { lookupCtlEntry 7 }

lookupCtlRowStatus OBJECT-TYPE

    SYNTAX      RowStatus
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "This object allows entries to be created and deleted
        in the lookupCtlTable.

A remote lookup operation is started when an
entry in this table is created via an SNMP SET
request and the entry is activated. This
occurs by setting the value of this object to CreateAndGo(4) during row creation or
by setting this object to active(1) after
the row is created.

A value MUST be specified for lookupCtlTargetAddress prior to a transition to active(1) state being
accepted.

A remote lookup operation starts when its entry first becomes active(1). Transitions in and
out of active(1) state have no effect on the operational behavior of a remote lookup
operation, with the exception that deletion of
an entry in this table by setting its RowStatus
object to destroy(6) will stop an active
remote lookup operation.

        The operational state of a remote lookup operation
        can be determined by examination of its
        lookupCtlOperStatus object."
    REFERENCE
        "See definition of RowStatus in RFC 2579,
        'Textual Conventions for SMIv2.'"
    ::= { lookupCtlEntry 8 }

-- Lookup Results Table

lookupResultsTable OBJECT-TYPE

    SYNTAX      SEQUENCE OF LookupResultsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines the Lookup Results Table for providing
        the capability of determining the results of a
        operation at a remote host.

One or more entries are added to the lookupResultsTable when a lookup operation,
as reflected by an lookupCtlEntry, completes
successfully. All entries related to a
successful lookup operation MUST be added
to the lookupResultsTable at the same time
that the associating lookupCtlOperStatus
object is transitioned to completed(2).

The number of entries added depends on the results determined for a particular lookup
operation. All entries associated with an lookupCtlEntry are removed when the
lookupCtlEntry is deleted.

A remote host can be multi-homed and have more
than one IP address associated with it (gethostbyname results) and/or it can have more
than one symbolic name (gethostbyaddr results).

The gethostbyaddr function is called with a
host address as its parameter and is used
primarily to determine a symbolic name to
associate with the host address. Entries in the lookupResultsTable MUST be made for each
host name returned. The official host name MUST be assigned a lookupResultsIndex of 1.

        The gethostbyname function is called with a
        symbolic host name and is used primarily to
        retrieve a host address.  If possible the
        primary host address SHOULD be assigned a
        lookupResultsIndex of 1."
   ::= { lookupObjects 4 }

lookupResultsEntry OBJECT-TYPE

    SYNTAX      LookupResultsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines an entry in the lookupResultsTable.  The
        first two index elements identify the
        lookupCtlEntry that a lookupResultsEntry belongs
        to.  The third index element selects a single
        lookup operation result."
    INDEX {
             lookupCtlOwnerIndex,
             lookupCtlOperationName,
    
             lookupResultsIndex
          }
    ::= { lookupResultsTable 1 }

LookupResultsEntry ::=

SEQUENCE {

        lookupResultsIndex        Unsigned32,
        lookupResultsAddressType  InetAddressType,
        lookupResultsAddress      InetAddress
     }

lookupResultsIndex OBJECT-TYPE

    SYNTAX      Unsigned32 (1..'ffffffff'h)
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Entries in the lookupResultsTable are created when
        the result of a lookup operation is determined.
    
        Entries MUST be stored in the lookupResultsTable in
        the order that they are retrieved.  Values assigned
        to lookupResultsIndex MUST start at 1 and increase
        in order."
    ::= { lookupResultsEntry 1 }

lookupResultsAddressType OBJECT-TYPE

    SYNTAX      InetAddressType
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Indicates the type of result of a remote lookup
        operation.  A value of unknown(0) implies that
        either the operation hasn't been started or that
        it has failed."
    ::= { lookupResultsEntry 2 }

lookupResultsAddress OBJECT-TYPE

    SYNTAX      InetAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Reflects a result for a remote lookup operation
        as per the value of lookupResultsAddressType."
    ::= { lookupResultsEntry 3 }
 
 -- Conformance information
 -- Compliance statements
 lookupCompliances OBJECT IDENTIFIER ::= { lookupConformance 1 }
 lookupGroups      OBJECT IDENTIFIER ::= { lookupConformance 2 }
 
 -- Compliance statements

lookupCompliance MODULE-COMPLIANCE

    STATUS  current
    DESCRIPTION
            "The compliance statement for the DISMAN-NSLOOKUP-MIB."
    MODULE  -- this module
        MANDATORY-GROUPS {
                            lookupGroup
                          }
    
        OBJECT lookupMaxConcurrentRequests
        MIN-ACCESS  read-only
        DESCRIPTION
            "The agent is not required to support SET
            operations to this object."
    
        OBJECT lookupPurgeTime
        MIN-ACCESS  read-only
        DESCRIPTION
            "The agent is not required to support a SET
            operation to this object."
    ::= { lookupCompliances 1 }
 
 -- MIB groupings

lookupGroup OBJECT-GROUP

   OBJECTS {
             lookupMaxConcurrentRequests,
             lookupPurgeTime,
             lookupCtlOperStatus,
             lookupCtlTargetAddressType,
             lookupCtlTargetAddress,
             lookupCtlTime,
             lookupCtlRc,
             lookupCtlRowStatus,
             lookupResultsAddressType,
             lookupResultsAddress
           }
   STATUS  current
   DESCRIPTION
       "The group of objects that comprise the remote
       Lookup operation."
    ::= { lookupGroups 1 }

END

5.0 Security Considerations

Certain management information in the MIBs defined by this document may be considered sensitive in some network environments. Therefore, authentication of received SNMP requests and controlled access to management information SHOULD be employed in such environments. The method for this authentication is a function of the SNMP Administrative Framework, and has not been expanded by this MIB.

To facilitate the provisioning of access control by a security administrator using the View-Based Access Control Model (VACM) defined in RFC 2575 [11] for tables in which multiple users may need to independently create or modify entries, the initial index is used as an "owner index". Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.

All entries in related tables belonging to a particular user will have the same value for this initial index. For a given user's entries in a particular table, the object identifiers for the information in these entries will have the same subidentifiers (except for the "column" subidentifier) up to the end of the encoded owner index. To configure VACM to permit access to this portion of the table, one would create vacmViewTreeFamilyTable entries with the value of vacmViewTreeFamilySubtree including the owner index portion, and vacmViewTreeFamilyMask "wildcarding" the column subidentifier. More elaborate configurations are possible. The VACM access control mechanism described above provides control.

In general, both the ping and traceroute functions when used excessively are considered a form of system attack. In the case of ping sending a system requests too often can negatively effect its performance or attempting to connect to what is supposed to be an unused port can be very unpredictable. Excessive use of the traceroute capability can like ping negatively affect system performance. In insecure environments it is RECOMMENDED that the MIBs defined within this memo not be supported.

6.0 Intellectual Property

The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on the IETF's procedures with respect to rights in standards-track and standards-related documentation can be found in BCP-11. Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF Secretariat.

The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director.

7.0 Acknowledgments

This document is a product of the DISMAN Working Group.

8.0 References

   [1]  Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple
        Network Management Protocol", STD 15, RFC 1157, May 1990.
   
   [2]  Postel, J., "Echo Protocol", STD 20, RFC 862, May 1983.
   
   [3]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
        M. and S. Waldbusser, "Structure of Management Information
        Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
   
   [4]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
        M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58,
        RFC 2579, April 1999.
   
   [5]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
        M. and S. Waldbusser, "Conformance Statements for SMIv2", STD
        58, RFC 2580, April 1999.
   
   [6]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol
        Operations for Version 2 of the Simple Network Management
        Protocol (SNMPv2)", RFC 1905, January 1996.
   
   [7]  Harrington D., Presuhn, R. and B. Wijnen, "An Architecture for
        Describing SNMP Management Frameworks", RFC 2571, April 1999.
   
   [8]  Case, J., Harrington D., Presuhn, R. and B. Wijnen, "Message
        Processing and Dispatching for the Simple Network Management
        Protocol (SNMP)", RFC 2572, April 1999.
   
   [9]  Levi D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC
        2573, April 1999.
   
   [10] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)
        for version 3 of the Simple Network Management Protocol
        (SNMPv3)", RFC 2574, April 1999.
   
   [11] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access
        Control Model (VACM) for the Simple Network Management Protocol
        (SNMP)", RFC 2575, April 1999.
   
   [12] Hovey, R. and S. Bradner, "The Organizations Involved in the
        IETF Standards Process", BCP 11, RFC 2028, October 1996.
   
   [13] Bradner, S., "Key words for use in RFCs to Indicate Requirement
        Levels", BCP 14, RFC 2119, March 1997.
   
   [14] Rose, M. and K. McCloghrie, "Structure and Identification of
        Management Information for TCP/IP-based Internets", RFC 1155,
        May 1990.
   
   [15] Rose, M. and K. McCloghrie, "Concise MIB Definitions", RFC 1212,
        March 1991.
   
   [16] Rose, M., "A Convention for Defining Traps for use with the
        SNMP", RFC 1215, March 1991.
   
   [17] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
        "Introduction to Community-based SNMPv2", RFC 1901, January
        1996.
   
   [18] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport
        Mappings for Version 2 of the Simple Network Management Protocol
        (SNMPv2)", RFC 1906, January 1996.
   
   [19] Bradner, S., "The Internet Standards Process -- Revision 3", RFC
        2026, BCP 9, October 1996.
   
   [20] Postel, J., "Internet Control Message Protocol", RFC 792,
        September 1981.
   
   [21] Nichols, K., Blake, S., Baker, F. and D. Black, "Definition of
        the Differentiated Services Field (DS Field) in the IPv4 and
        IPv6 Headers", RFC 2474, December 1998.
   
   [22] Daniele, M., Haberman, B., Routhier, S. and J. Schoenwaelder,
        "Textual Conventions for Internet Network Addresses", RFC 2851,
        June 2000.
   
   [23] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB",
        RFC 2863, June 2000.

9.0 Author's Address

   Kenneth D. White
   Dept. BRQA/Bldg. 501/G114
   IBM Corporation
   P.O.Box 12195
   3039 Cornwallis
   Research Triangle Park, NC 27709, USA
   
   EMail: wkenneth@us.ibm.com

10. Full Copyright Statement

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Acknowledgement

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