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RFC 3371

 
 
 

Layer Two Tunneling Protocol "L2TP" Management Information Base

Part 2 of 3, p. 11 to 34
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4.0 L2TP Object Definitions

   L2TP-MIB DEFINITIONS ::= BEGIN

   IMPORTS
           Integer32, Unsigned32, Counter32, Gauge32,
           Counter64, transmission, MODULE-IDENTITY,
           OBJECT-TYPE, NOTIFICATION-TYPE
               FROM SNMPv2-SMI
           TEXTUAL-CONVENTION, RowStatus, TruthValue,
           StorageType
               FROM SNMPv2-TC
           SnmpAdminString
               FROM SNMP-FRAMEWORK-MIB
           OBJECT-GROUP, MODULE-COMPLIANCE, NOTIFICATION-GROUP
               FROM SNMPv2-CONF
           InterfaceIndex
               FROM IF-MIB;

   l2tp    MODULE-IDENTITY
           LAST-UPDATED    "200208230000Z" -- 23 August 2002
           ORGANIZATION    "IETF L2TP Working Group"
           CONTACT-INFO
             "Evan Caves
              Postal: Occam Networks
                      77 Robin Hill Road
                      Santa Barbara, CA, 93117
              Tel:    +1 805692 2900
              Email:  evan@occamnetworks.com

              Pat R. Calhoun

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              Postal: Black Storm Networks
                      110 Nortech Parkway
                      San Jose, CA, 95143
              Tel:    +1 408 941-0500
              Email:  pcalhoun@bstormnetworks.com

              Ross Wheeler
              Postal: DoubleWide Software, Inc.
                      2953 Bunker Hill Lane
                      Suite 101
                      Santa Clara, CA 95054
              Tel:    +1 6509260599
              Email:  ross@doublewidesoft.com

              Layer Two Tunneling Protocol Extensions WG
              Working Group Area:    Internet
              Working Group Name:    l2tpext
              General Discussion:    l2tp@l2tp.net"

           DESCRIPTION
              "The MIB module that describes managed objects of
               general use by the Layer Two Transport Protocol."

           -- revision log

           REVISION        "200208230000Z" -- 23 August 2002
           DESCRIPTION
              "First revision, published as RFC 3371."

           ::= { transmission 95 }

   --
   --      Textual Conventions
   --

   L2tpMilliSeconds ::=  TEXTUAL-CONVENTION
           DISPLAY-HINT    "d-3"
           STATUS          current
           DESCRIPTION
              "A period of time measured in units of .001 of seconds
               when used in conjunction with the DISPLAY-HINT will
               show seconds and fractions of second with a resolution
               of .001 of a second."
           SYNTAX          Integer32 (0..2147483646)

   --
   --      Definitions of significant branches
   --

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   l2tpNotifications   OBJECT IDENTIFIER  ::= { l2tp 0 }
   l2tpObjects         OBJECT IDENTIFIER  ::= { l2tp 1 }
   l2tpTransports      OBJECT IDENTIFIER  ::= { l2tp 3 }
   l2tpConformance     OBJECT IDENTIFIER  ::= { l2tp 4 }

   --
   --      Definitions of significant branches under l2tpObjects
   --
   l2tpScalar          OBJECT IDENTIFIER  ::= { l2tpObjects 1 }
   l2tpConfig          OBJECT IDENTIFIER  ::= { l2tpScalar 1 }
   l2tpStats           OBJECT IDENTIFIER  ::= { l2tpScalar 2 }

   --
   --      Definitions of significant branches under l2tpTransports
   --
   --      Note that future transports of L2TP (e.g.: Frame relay)
   --      should create their own branch under l2tpTransports.

   l2tpTransportIpUdp  OBJECT IDENTIFIER  ::= { l2tpTransports 1 }
   l2tpIpUdpObjects    OBJECT IDENTIFIER  ::= { l2tpTransportIpUdp 1 }
   l2tpIpUdpTraps      OBJECT IDENTIFIER  ::= { l2tpTransportIpUdp 2 }

   --
   --      The L2TP Scalar Configuration Group
   --
   --      This group of objects is used to manage configuration
   --      of the L2TP protocol environment.

   l2tpAdminState          OBJECT-TYPE
           SYNTAX          INTEGER {
                               enabled(1),
                               disabled(2)
                           }
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object defines the administrative state of
               the L2TP protocol. Setting this object to
               'disabled' causes all tunnels to be immediately
               disconnected and no further tunnels to be either
               initiated or accepted. The value of this object
               must be maintained in non-volatile memory."
           ::= { l2tpConfig 1 }

   l2tpDrainTunnels        OBJECT-TYPE
           SYNTAX          TruthValue
           MAX-ACCESS      read-write
           STATUS          current

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           DESCRIPTION
              "Setting this object to 'true' will prevent any new
               tunnels and/or sessions to be either initiated or
               accepted but does NOT disconnect any active
               tunnels/sessions. Setting this object to true(1)
               causes all domains and their respective tunnels
               to transition to the draining state. Note that
               when this occurs the 'xxxDraining' status objects
               of the domains and their tunnels should reflect
               that they are 'draining'. Setting this object has
               no affect on the domains or their tunnels
               'xxxDrainTunnels' configuration objects. To cancel
               a drain this object should be set to false(2).
               The object l2tpDrainingTunnels reflects
               the current L2TP draining state. The value of
               this object must be maintained in non-volatile
               memory."
           ::= { l2tpConfig 2 }

   --
   --      The L2TP Scalar Status and Statistics Group
   --
   --      This group of objects describe the current state and
   --      statistics of L2TP.

   l2tpProtocolVersions    OBJECT-TYPE
           SYNTAX          OCTET STRING (SIZE(2..256))
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
               "Vector of supported L2TP protocol version and
                revision numbers. Supported versions are identified
                via a two octet pairing where the first octet indicates
                the version and the second octet contains the revision."
           ::= { l2tpStats 1 }

   l2tpVendorName          OBJECT-TYPE
           SYNTAX          SnmpAdminString
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object identifies the Vendor name of the L2TP
               protocol stack."
           ::= { l2tpStats 2 }

   l2tpFirmwareRev         OBJECT-TYPE
           SYNTAX          Integer32
           MAX-ACCESS      read-only

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           STATUS          current
           DESCRIPTION
              "This object defines the firmware revision for the
               L2TP protocol stack."
           ::= { l2tpStats 3 }

   l2tpDrainingTunnels     OBJECT-TYPE
           SYNTAX          TruthValue
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object indicates if the local L2TP is draining
               off sessions from all tunnels."
           ::= { l2tpStats 4 }

   --
   --      The L2TP Domain Configuration Table
   --

   l2tpDomainConfigTable   OBJECT-TYPE
           SYNTAX          SEQUENCE OF L2tpDomainConfigEntry
           MAX-ACCESS      not-accessible
           STATUS          current
           DESCRIPTION
              "The L2TP Domain configuration table. This table
               contains objects that can be used to configure
               the operational characteristics of a tunnel
               domain. There is a 1-1 correspondence between
               conceptual rows of this table and conceptual
               rows of the l2tpDomainStatsTable."
           ::= { l2tpObjects 2 }

   l2tpDomainConfigEntry   OBJECT-TYPE
           SYNTAX          L2tpDomainConfigEntry
           MAX-ACCESS      not-accessible
           STATUS          current
           DESCRIPTION
              "An L2TP Domain configuration entry. An entry in this
               table may correspond to a single endpoint or a group
               of tunnel endpoints."
           INDEX { l2tpDomainConfigId }
           ::= { l2tpDomainConfigTable 1 }

   L2tpDomainConfigEntry ::=
           SEQUENCE {
               l2tpDomainConfigId
                   SnmpAdminString,
               l2tpDomainConfigAdminState

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                   INTEGER,
               l2tpDomainConfigDrainTunnels
                   TruthValue,
               l2tpDomainConfigAuth
                   INTEGER,
               l2tpDomainConfigSecret
                   SnmpAdminString,
               l2tpDomainConfigTunnelSecurity
                   INTEGER,
               l2tpDomainConfigTunnelHelloInt
                   Integer32,
               l2tpDomainConfigTunnelIdleTO
                   Integer32,
               l2tpDomainConfigControlRWS
                   Integer32,
               l2tpDomainConfigControlMaxRetx
                   Integer32,
               l2tpDomainConfigControlMaxRetxTO
                   Integer32,
               l2tpDomainConfigPayloadSeq
                   INTEGER,
               l2tpDomainConfigReassemblyTO
                   L2tpMilliSeconds,
               l2tpDomainConfigProxyPPPAuth
                   TruthValue,
               l2tpDomainConfigStorageType
                   StorageType,
               l2tpDomainConfigStatus
                   RowStatus
           }

   l2tpDomainConfigId OBJECT-TYPE
           SYNTAX          SnmpAdminString (SIZE (1..80))
           MAX-ACCESS      not-accessible
           STATUS          current
           DESCRIPTION
              "The identifier, usually in the form of a Domain
               Name (full or partial), describing a single tunnel
               endpoint or a domain of tunnel endpoints. This is
               typically used as a 'handle' to identify the
               tunnel configuration requirements for both incoming
               and outgoing tunnel connection attempts. Both the
               LAC and  LNS could use information provided in the
               Host Name AVP attribute however the tunnel initiator
               could use other means not specified to identify
               the domain's tunnel configuration requirements.
               For example; three rows in this table have
               l2tpDomainConfigId values of 'lac1.isp.com',

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               'isp.com' and 'com'. A tunnel endpoint then identifies
               itself as 'lac1.isp.com' which would match the
               'lac1.isp.com' entry in this table. A second tunnel
               endpoint then identifies itself as 'lac2.isp.com'.
               This endpoint is then associated with the 'isp.com'
               entry of this table."
           ::= { l2tpDomainConfigEntry 1 }

   l2tpDomainConfigAdminState OBJECT-TYPE
           SYNTAX          INTEGER {
                               enabled(1),
                               disabled(2)
                           }
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object defines the administrative state of this
               tunnel domain. Setting this object to disabled(2)
               causes all tunnels to be immediately disconnected
               and no further tunnels to be either initiated or
               accepted. Note that all columnar objects corresponding
               to this conceptual row cannot be modified when
               the administrative state is enabled EXCEPT those
               objects which specifically state otherwise."
           DEFVAL { enabled }
           ::= { l2tpDomainConfigEntry 2 }

   l2tpDomainConfigDrainTunnels OBJECT-TYPE
           SYNTAX          TruthValue
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "Setting this object to 'true' will prevent any new
               tunnels and/or sessions from being either initiated
               or accepted but does NOT disconnect any active
               tunnels/sessions for this tunnel domain. Setting
               this object to true(1) causes all tunnels within
               this domain to transition to the draining state.
               Note that when this occurs the
               l2tpTunnelStatsDrainingTunnel status objects of
               all of this domain's tunnels should reflect that
               they are 'draining'. Setting this object has no
               effect on this domain's associated tunnels
               l2tpTunnelConfigDrainTunnel configuration objects.
               To cancel a drain this object should be set to
               false(2).  Setting this object to false(2) when
               the L2TP object l2tpDrainTunnels is true(1) has
               no affect, all domains and their tunnels will

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               continue to drain."
           DEFVAL { false }
           ::= { l2tpDomainConfigEntry 3 }

   l2tpDomainConfigAuth OBJECT-TYPE
           SYNTAX          INTEGER {
                               none(1),
                               simple(2),
                               challenge(3)
                           }
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object describes how tunnel peers belonging
               to this domain are to be authenticated. The value
               simple(2) indicates that peers are authenticated
               simply by their host name as described in the Host
               Name AVP.  The value challenge(3) indicates that
               all peers are challenged to prove their identification.
               This mechanism is described in the L2TP protocol."
           REFERENCE "RFC 2661 Section 5.1"
           DEFVAL { none }
           ::= { l2tpDomainConfigEntry 4 }

   l2tpDomainConfigSecret  OBJECT-TYPE
           SYNTAX          SnmpAdminString (SIZE (0..255))
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object is used to configure the shared secret
               used during the tunnel authentication phase of
               tunnel establishment. This object MUST be accessible
               only via requests using both authentication and
               privacy. The agent MUST report an empty string in
               response to get, get-next and get-bulk requests."
           ::= { l2tpDomainConfigEntry 5 }

   l2tpDomainConfigTunnelSecurity OBJECT-TYPE
           SYNTAX          INTEGER {
                               none(1),
                               other(2),
                               ipSec(3)
                           }
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object defines whether this tunnel domain
               requires that all tunnels are to be secured. The

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               value of ipsec(3) indicates that all tunnel packets,
               control and session, have IP Security headers. The
               type of IP Security headers (AH, ESP etc) and how
               they are further described is outside the scope of
               this document."
           DEFVAL { none }
           ::= { l2tpDomainConfigEntry 6 }

   l2tpDomainConfigTunnelHelloInt OBJECT-TYPE
           SYNTAX          Integer32 (0..3600)
           UNITS           "seconds"
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object defines the interval in which Hello
               (or keep-alive) packets are to be sent by local
               peers belonging to this tunnel domain. The value
               zero effectively disables the sending of Hello
               packets. This object may be modified when the
               administrative state is enabled for this conceptual
               row."
           DEFVAL { 60 }
           ::= { l2tpDomainConfigEntry 7 }

   l2tpDomainConfigTunnelIdleTO OBJECT-TYPE
           SYNTAX          Integer32 (-1..86400)
           UNITS           "seconds"
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object defines the period of time that an
               established tunnel belonging to this tunnel
               domain with no active sessions will wait before
               disconnecting the tunnel. A value of zero indicates
               that the tunnel will disconnect immediately after the
               last session disconnects. A value of -1 leaves the
               tunnel up indefinitely. This object may be modified
               when the administrative state is enabled for this
               conceptual row."
           DEFVAL { 0 }
           ::= { l2tpDomainConfigEntry 8 }

   l2tpDomainConfigControlRWS OBJECT-TYPE
           SYNTAX          Integer32 (1..65535)
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object defines the control channel receive

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               window size for tunnels belonging to this domain. It
               specifies the maximum number of packets the tunnel
               peer belonging to this domain can send without waiting
               for an acknowledgement from this peer."
           DEFVAL { 4 }
           ::= { l2tpDomainConfigEntry 9 }

   l2tpDomainConfigControlMaxRetx OBJECT-TYPE
           SYNTAX          Integer32 (0..32)
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object defines the maximum number of retransmissions
               which the L2TP stack will attempt for tunnels belonging
               to this domain before assuming that the peer is no
               longer responding."
           DEFVAL { 5 }
           ::= { l2tpDomainConfigEntry 10 }

   l2tpDomainConfigControlMaxRetxTO OBJECT-TYPE
           SYNTAX          Integer32 (1..32)
           UNITS           "seconds"
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object defines the maximum retransmission timeout
               interval which the L2TP stack will wait for tunnels
               belonging to this domain before retransmitting a
               control packet that has not been acknowledged."
           DEFVAL { 16 }
           ::= { l2tpDomainConfigEntry 11 }

   l2tpDomainConfigPayloadSeq OBJECT-TYPE
           SYNTAX          INTEGER {
                               onDemand(1),
                               never(2),
                               always(3)
                           }
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object determines whether or not session payload
               packets will be requested to be sent with sequence
               numbers from tunnel peers belonging to this domain.
               The value onDemand(1) allows the L2TP implementation
               to initiate payload sequencing when necessary based
               on local information (e.g: during LCP/NCP negotiations
               or for CCP). The value never(2) indicates that L2TP

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               will never initiate sequencing but will do sequencing
               if asked. The value always(3) indicates that L2TP
               will send the Sequencing Required AVP during session
               establishment."
           DEFVAL { onDemand }
           ::= { l2tpDomainConfigEntry 12 }

   l2tpDomainConfigReassemblyTO OBJECT-TYPE
           SYNTAX          L2tpMilliSeconds
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object defines the number of milliseconds that
               local peers of this tunnel domain will wait before
               processing payload packets that were received out of
               sequence (which are waiting for the packet(s) to put
               them in sequence).  A low value increases the chance
               of delayed packets to be discarded (which MAY cause
               the PPP decompression engine to reset) while a high
               value may cause more queuing and possibly degrade
               throughput if packets are truly lost. The default
               value for this object is zero which will result in
               all delayed packets being lost."
           DEFVAL { 0 }
           ::= { l2tpDomainConfigEntry 13 }

   l2tpDomainConfigProxyPPPAuth OBJECT-TYPE
           SYNTAX          TruthValue
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "This object is used to configure the sending
               or acceptance of the PPP Proxy Authentication
               AVP's on the LAC or LNS."
           DEFVAL { true }
           ::= { l2tpDomainConfigEntry 14 }

   l2tpDomainConfigStorageType  OBJECT-TYPE
           SYNTAX          StorageType
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "The storage type for this conceptual row.

               Conceptual rows having the value 'permanent' must
               allow write-access at a minimum to:

               - l2tpDomainConfigAdminState and

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                 l2tpDomainConfigDrainTunnels at all times
               - l2tpDomainConfigSecret if l2tpDomainConfigAuth
                 has been configured as 'challenge'

               It is an implementation issue to decide if a SET for
               a readOnly or permanent row is accepted at all. In some
               contexts this may make sense, in others it may not. If
               a SET for a readOnly or permanent row is not accepted
               at all, then a 'wrongValue' error must be returned."
           ::= { l2tpDomainConfigEntry 15 }

   l2tpDomainConfigStatus  OBJECT-TYPE
           SYNTAX          RowStatus
           MAX-ACCESS      read-create
           STATUS          current
           DESCRIPTION
              "The status of this Domain entry. Columnar objects
               corresponding to this conceptual row may be modified
               according to their description clauses when this
               RowStatus object is 'active'."
           ::= { l2tpDomainConfigEntry 16 }

   --
   --      The L2TP Domain Status and Statistics Table
   --

   l2tpDomainStatsTable    OBJECT-TYPE
           SYNTAX          SEQUENCE OF L2tpDomainStatsEntry
           MAX-ACCESS      not-accessible
           STATUS          current
           DESCRIPTION
              "The L2TP Domain Status and Statistics table. This
               table contains objects that can be used to describe
               the current status and statistics of a tunnel domain.
               There is a 1-1 correspondence between conceptual
               rows of this table and conceptual rows of the
               l2tpDomainConfigTable."
           ::= { l2tpObjects 3 }

   l2tpDomainStatsEntry    OBJECT-TYPE
           SYNTAX          L2tpDomainStatsEntry
           MAX-ACCESS      not-accessible
           STATUS          current
           DESCRIPTION
              "An L2TP Domain Stats entry. An entry in this table
               may correspond to a single endpoint or a group of
               tunnel endpoints."
           AUGMENTS { l2tpDomainConfigEntry }

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           ::= { l2tpDomainStatsTable 1 }

   L2tpDomainStatsEntry ::=
           SEQUENCE {
               l2tpDomainStatsTotalTunnels
                   Counter32,
               l2tpDomainStatsFailedTunnels
                   Counter32,
               l2tpDomainStatsFailedAuths
                   Counter32,
               l2tpDomainStatsActiveTunnels
                   Gauge32,
               l2tpDomainStatsTotalSessions
                   Counter32,
               l2tpDomainStatsFailedSessions
                   Counter32,
               l2tpDomainStatsActiveSessions
                   Gauge32,
               l2tpDomainStatsDrainingTunnels
                   TruthValue,
               l2tpDomainStatsControlRxOctets
                   Counter32,
               l2tpDomainStatsControlRxPkts
                   Counter32,
               l2tpDomainStatsControlTxOctets
                   Counter32,
               l2tpDomainStatsControlTxPkts
                   Counter32,
               l2tpDomainStatsPayloadRxOctets
                   Counter32,
               l2tpDomainStatsPayloadRxPkts
                   Counter32,
               l2tpDomainStatsPayloadRxDiscs
                   Counter32,
               l2tpDomainStatsPayloadTxOctets
                   Counter32,
               l2tpDomainStatsPayloadTxPkts
                   Counter32,
               l2tpDomainStatsControlHCRxOctets
                   Counter64,
               l2tpDomainStatsControlHCRxPkts
                   Counter64,
               l2tpDomainStatsControlHCTxOctets
                   Counter64,
               l2tpDomainStatsControlHCTxPkts
                   Counter64,
               l2tpDomainStatsPayloadHCRxOctets
                   Counter64,

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               l2tpDomainStatsPayloadHCRxPkts
                   Counter64,
               l2tpDomainStatsPayloadHCRxDiscs
                   Counter64,
               l2tpDomainStatsPayloadHCTxOctets
                   Counter64,
               l2tpDomainStatsPayloadHCTxPkts
                   Counter64
           }

   l2tpDomainStatsTotalTunnels OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the total number of tunnels
               that have successfully reached the established
               state for this tunnel domain."
           ::= { l2tpDomainStatsEntry 1 }

   l2tpDomainStatsFailedTunnels OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of tunnels that
               failed (eg: connection timeout, unsupported
               or malformed AVP's etc) to reach the established
               state for this tunnel domain."
           ::= { l2tpDomainStatsEntry 2 }

   l2tpDomainStatsFailedAuths OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of failed tunnel
               connection attempts for this domain because the
               tunnel peer failed authentication."
           ::= { l2tpDomainStatsEntry 3 }

   l2tpDomainStatsActiveTunnels OBJECT-TYPE
           SYNTAX          Gauge32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of tunnels that
               are currently active for this domain."

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           ::= { l2tpDomainStatsEntry 4 }

   l2tpDomainStatsTotalSessions OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the total number of sessions
               that have successfully reached the established
               state for this tunnel domain."
           ::= { l2tpDomainStatsEntry 5 }

   l2tpDomainStatsFailedSessions OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of sessions that
               failed (eg: connection timeout, unsupported
               or malformed AVP's etc) to reach the established
               state for this tunnel domain."
           ::= { l2tpDomainStatsEntry 6 }

   l2tpDomainStatsActiveSessions OBJECT-TYPE
           SYNTAX          Gauge32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of sessions that
               are currently active for this domain."
           ::= { l2tpDomainStatsEntry 7 }

   l2tpDomainStatsDrainingTunnels OBJECT-TYPE
           SYNTAX          TruthValue
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object indicates if this domain is draining
               off sessions from all tunnels."
           ::= { l2tpDomainStatsEntry 8 }

   l2tpDomainStatsControlRxOctets OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of control channel
               octets received for this tunnel domain."

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           ::= { l2tpDomainStatsEntry 9 }

   l2tpDomainStatsControlRxPkts OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of control packets
               received for this tunnel domain."
           ::= { l2tpDomainStatsEntry 10 }

   l2tpDomainStatsControlTxOctets OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of control channel
               octets that were transmitted to tunnel endpoints
               for this domain."
           ::= { l2tpDomainStatsEntry 11 }

   l2tpDomainStatsControlTxPkts OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of control packets
               that were transmitted to tunnel endpoints for
               this domain."
           ::= { l2tpDomainStatsEntry 12 }

   l2tpDomainStatsPayloadRxOctets OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of payload channel
               octets that were received for this tunnel domain."
           ::= { l2tpDomainStatsEntry 13 }

   l2tpDomainStatsPayloadRxPkts OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of payload packets
               that were received for this tunnel domain."
           ::= { l2tpDomainStatsEntry 14 }

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   l2tpDomainStatsPayloadRxDiscs OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of received payload
               packets that were discarded by this tunnel domain."
           ::= { l2tpDomainStatsEntry 15 }

   l2tpDomainStatsPayloadTxOctets OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of payload channel
               octets that were transmitted to tunnel peers
               within this tunnel domain."
           ::= { l2tpDomainStatsEntry 16 }

   l2tpDomainStatsPayloadTxPkts OBJECT-TYPE
           SYNTAX          Counter32
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object returns the number of payload packets
               that were transmitted to tunnel peers within
               this tunnel domain."
           ::= { l2tpDomainStatsEntry 17 }

   --
   -- High Capacity Counter objects.  These objects are all
   -- 64 bit versions of the above 32-bit counters.  These
   -- objects all have the same basic semantics as their
   -- 32-bit counterparts, however, their syntax has been
   -- extended to 64 bits.
   --

   l2tpDomainStatsControlHCRxOctets OBJECT-TYPE
           SYNTAX          Counter64
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object is a 64-bit version of
               l2tpDomainStatsControlRxOctets."
           ::= { l2tpDomainStatsEntry 18 }

   l2tpDomainStatsControlHCRxPkts OBJECT-TYPE
           SYNTAX          Counter64

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           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object is a 64-bit version of
               l2tpDomainStatsControlRxPkts."
           ::= { l2tpDomainStatsEntry 19 }

   l2tpDomainStatsControlHCTxOctets OBJECT-TYPE
           SYNTAX          Counter64
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object is a 64-bit version of
               l2tpDomainStatsControlTxOctets."
           ::= { l2tpDomainStatsEntry 20 }

   l2tpDomainStatsControlHCTxPkts OBJECT-TYPE
           SYNTAX          Counter64
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object is a 64-bit version of
               l2tpDomainStatsControlTxPkts."
           ::= { l2tpDomainStatsEntry 21 }

   l2tpDomainStatsPayloadHCRxOctets OBJECT-TYPE
           SYNTAX          Counter64
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object is a 64-bit version of
               l2tpDomainStatsPayloadRxOctets."
           ::= { l2tpDomainStatsEntry 22 }

   l2tpDomainStatsPayloadHCRxPkts OBJECT-TYPE
           SYNTAX          Counter64
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object is a 64-bit version of
               l2tpDomainStatsPayloadRxPkts."
           ::= { l2tpDomainStatsEntry 23 }

   l2tpDomainStatsPayloadHCRxDiscs OBJECT-TYPE
           SYNTAX          Counter64
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION

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              "This object is a 64-bit version of
               l2tpDomainStatsPayloadRxDiscs."
           ::= { l2tpDomainStatsEntry 24 }

   l2tpDomainStatsPayloadHCTxOctets OBJECT-TYPE
           SYNTAX          Counter64
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object is a 64-bit version of
               l2tpDomainStatsPayloadTxOctets."
           ::= { l2tpDomainStatsEntry 25 }

   l2tpDomainStatsPayloadHCTxPkts OBJECT-TYPE
           SYNTAX          Counter64
           MAX-ACCESS      read-only
           STATUS          current
           DESCRIPTION
              "This object is a 64-bit version of
               l2tpDomainStatsPayloadTxPkts."
           ::= { l2tpDomainStatsEntry 26 }

   --
   --      The L2TP Tunnel Configuration Table
   --

   l2tpTunnelConfigTable   OBJECT-TYPE
           SYNTAX          SEQUENCE OF L2tpTunnelConfigEntry
           MAX-ACCESS      not-accessible
           STATUS          current
           DESCRIPTION
              "The L2TP tunnel configuration table. This
               table contains objects that can be used to
               (re)configure the operational characteristics
               of a single L2TP tunnel. There is a 1-1
               correspondence between conceptual rows of
               this table and conceptual rows of the
               l2tpTunnelStatsTable. Entries in this table
               have the same persistency characteristics as
               that of the tunnelConfigTable."
           REFERENCE "RFC 2667"
           ::= { l2tpObjects 4 }

   l2tpTunnelConfigEntry   OBJECT-TYPE
           SYNTAX          L2tpTunnelConfigEntry
           MAX-ACCESS      not-accessible
           STATUS          current
           DESCRIPTION

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              "A L2TP tunnel interface configuration entry.
               Entries in this table come and go as a result
               of protocol interactions or on management
               operations. The latter occurs when a row is
               instantiated in the tunnelConfigTable row
               and the encapsulation method is 'l2tp'."
           REFERENCE "RFC 2667"
           INDEX { l2tpTunnelConfigIfIndex }
           ::= { l2tpTunnelConfigTable 1 }

   L2tpTunnelConfigEntry ::=
           SEQUENCE {
               l2tpTunnelConfigIfIndex
                   InterfaceIndex,
               l2tpTunnelConfigDomainId
                   SnmpAdminString,
               l2tpTunnelConfigAuth
                   INTEGER,
               l2tpTunnelConfigSecret
                   SnmpAdminString,
               l2tpTunnelConfigSecurity
                   INTEGER,
               l2tpTunnelConfigHelloInterval
                   Integer32,
               l2tpTunnelConfigIdleTimeout
                   Integer32,
               l2tpTunnelConfigControlRWS
                   Integer32,
               l2tpTunnelConfigControlMaxRetx
                   Integer32,
               l2tpTunnelConfigControlMaxRetxTO
                   Integer32,
               l2tpTunnelConfigPayloadSeq
                   INTEGER,
               l2tpTunnelConfigReassemblyTO
                   L2tpMilliSeconds,
               l2tpTunnelConfigTransport
                   INTEGER,
               l2tpTunnelConfigDrainTunnel
                   TruthValue,
               l2tpTunnelConfigProxyPPPAuth
                   TruthValue
           }

   l2tpTunnelConfigIfIndex OBJECT-TYPE
           SYNTAX          InterfaceIndex
           MAX-ACCESS      not-accessible
           STATUS          current

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           DESCRIPTION
              "This value for this object is equal to the value
               of ifIndex of the Interfaces MIB for tunnel
               interfaces of type L2TP."
           ::= { l2tpTunnelConfigEntry 1 }

   l2tpTunnelConfigDomainId OBJECT-TYPE
           SYNTAX          SnmpAdminString (SIZE (1..80))
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "The tunnel domain that this tunnel belongs
               to. A LNS tunnel endpoint will typically inherit
               this value from the endpoint domain table. A
               LAC may be provided with this information during
               tunnel setup. When a zero length string is returned
               this tunnel does not belong belong to any particular
               domain."
           ::= { l2tpTunnelConfigEntry 2 }

   l2tpTunnelConfigAuth OBJECT-TYPE
           SYNTAX          INTEGER {
                               none(1),
                               simple(2),
                               challenge(3)
                           }
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object describes how L2TP tunnel peers are
               to be authenticated. The value 'simple' indicates
               that peers are authenticated simply by their host
               name as described in the Host Name AVP. The value
               'challenge' indicates that all peers are challenged
               to prove their identification. This mechanism is
               described in the L2TP protocol. This object cannot
               be modified when the tunnel is in a connecting or
               connected state."
           DEFVAL { none }
           ::= { l2tpTunnelConfigEntry 3 }

   l2tpTunnelConfigSecret  OBJECT-TYPE
           SYNTAX          SnmpAdminString (SIZE (0..255))
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object is used to configure the shared secret
               used during the tunnel authentication phase of

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               tunnel establishment. This object cannot be modified
               when the tunnel is in a connecting or connected
               state. This object MUST be accessible only via
               requests using both authentication and privacy.
               The agent MUST report an empty string in response
               to get, get-next and get-bulk requests."
           ::= { l2tpTunnelConfigEntry 4 }

   l2tpTunnelConfigSecurity OBJECT-TYPE
           SYNTAX          INTEGER {
                               none(1),
                               other(2),
                               ipsec(3)
                           }
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object defines whether this tunnel is to be
               secured. The value of 'ipSec' indicates that all
               tunnel packets, control and session, have IP
               Security headers. The type of IP Security headers
               (AH, ESP etc) and how they are further described
               is outside the scope of this document. This object
               cannot be modified when the tunnel is in a connecting
               or connected state."
           DEFVAL { none }
           ::= { l2tpTunnelConfigEntry 5 }

   l2tpTunnelConfigHelloInterval OBJECT-TYPE
           SYNTAX          Integer32  (0..3600)
           UNITS           "seconds"
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object defines the interval in which Hello
               (or keep-alive) packets are to be sent to the
               tunnel peer.  The value zero effectively disables
               the sending of Hello packets. Modifications to this
               object have immediate effect."
           DEFVAL { 60 }
           ::= { l2tpTunnelConfigEntry 6 }

   l2tpTunnelConfigIdleTimeout OBJECT-TYPE
           SYNTAX          Integer32 (-1..86400)
           UNITS           "seconds"
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION

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              "This object defines the period of time that an
               established tunnel with no sessions will wait
               before disconnecting the tunnel. A value of
               zero indicates that the tunnel will disconnect
               immediately after the last session disconnects.
               A value of -1 leaves the tunnel up indefinitely.
               Modifications to this object have immediate
               effect."
           DEFVAL { 0 }
           ::= { l2tpTunnelConfigEntry 7 }

   l2tpTunnelConfigControlRWS OBJECT-TYPE
           SYNTAX          Integer32 (1..65535)
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object defines the control channel receive
               window size. It specifies the maximum number of
               packets the tunnel peer can send without waiting
               for an acknowledgement from this peer. This object
               cannot be modified when the tunnel is in a con-
               necting or connected state."
           DEFVAL { 4 }
           ::= { l2tpTunnelConfigEntry 8 }

   l2tpTunnelConfigControlMaxRetx OBJECT-TYPE
           SYNTAX          Integer32 (0..32)
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object defines the number of retransmissions
               which the tunnel will attempt before assuming that
               the peer is no longer responding. A value of zero
               indicates that this peer will not attempt to
               retransmit an unacknowledged control packet.
               Modifications to this object have immediate
               effect."
           DEFVAL { 5 }
           ::= { l2tpTunnelConfigEntry 9 }

   l2tpTunnelConfigControlMaxRetxTO OBJECT-TYPE
           SYNTAX          Integer32 (1..32)
           UNITS           "seconds"
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object defines the maximum retransmission timeout
               interval which the tunnel will wait before retrans-

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               mitting a control packet that has not been acknowledged.
               Modifications to this object have immediate effect."
           DEFVAL { 16 }
           ::= { l2tpTunnelConfigEntry 10 }

   l2tpTunnelConfigPayloadSeq OBJECT-TYPE
           SYNTAX          INTEGER {
                               onDemand(1),
                               never(2),
                               always(3)
                           }
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object determines whether or not session payload
               packets will be requested to be sent with sequence
               numbers from tunnel peers belonging to this domain.
               The value onDemand(1) allows the L2TP implementation
               to initiate payload sequencing when necessary based
               on local information (e.g: during LCP/NCP negotiations
               or for CCP). The value never(2) indicates that L2TP
               will never initiate sequencing but will do sequencing
               if asked. The value always(3) indicates that L2TP
               will send the Sequencing Required AVP during session
               establishment. Modifications to this object have
               immediate effect."
           DEFVAL { onDemand }
           ::= { l2tpTunnelConfigEntry 11 }

   l2tpTunnelConfigReassemblyTO OBJECT-TYPE
           SYNTAX          L2tpMilliSeconds
           MAX-ACCESS      read-write
           STATUS          current
           DESCRIPTION
              "This object defines the number of milliseconds that
               this tunnel will wait before processing payload packets
               that were received out of sequence (which are waiting
               for the packet(s) to put them in sequence).  A low value
               increases the chance of delayed packets to be discarded
               (which MAY cause the PPP decompression engine to
               reset) while a high value may cause more queuing and
               possibly degrade throughput if packets are truly lost.
               The default value for this object is zero which will
               result in all delayed packets being lost. Modifications
               to this object have immediate effect."
           DEFVAL { 0 }
           ::= { l2tpTunnelConfigEntry 12 }


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