l2tpTunnelConfigTransport OBJECT-TYPE SYNTAX INTEGER { other(1), none(2), udpIp(3), frameRelay(4), atm(5) } MAX-ACCESS read-write STATUS current DESCRIPTION "This object defines the underlying transport media that is in use for this tunnel entry. Different tunnel transports may define MIB extensions to the L2TP tunnel table to realize the transport layer. For example if the value of this object is 'udpIp' then the value of ifIndex for this table may be used to determine state from the l2tpUdpStatsTable. This object cannot be modified when the tunnel is in a connecting or connected state." ::= { l2tpTunnelConfigEntry 13 } l2tpTunnelConfigDrainTunnel OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "Setting this object to 'true' will prevent any new session from being either initiated or accepted but does NOT disconnect any active sessions for this tunnel. Note that when this occurs the l2tpTunnelStatsDrainingTunnel status object of this tunnel should reflect that it is 'draining'. To cancel a drain this object should be set to false(2). Setting this object to false(2) when the L2TP objects l2tpDrainTunnels or l2tpDomainConfigDrainTunnels is true(1) has no affect, this tunnels will continue to drain." DEFVAL { false } ::= { l2tpTunnelConfigEntry 14 } l2tpTunnelConfigProxyPPPAuth OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "This object is used to configure the sending or acceptance of the session PPP Proxy Authentication AVP's on the LAC or LNS."
DEFVAL { true } ::= { l2tpTunnelConfigEntry 15 } -- -- The L2TP Tunnel Status and Statisticss Table -- l2tpTunnelStatsTable OBJECT-TYPE SYNTAX SEQUENCE OF L2tpTunnelStatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The L2TP tunnel status and statistics table. This table contains objects that can be used to describe the current status and statistics of a single L2TP tunnel. There is a 1-1 correspondence between conceptual rows of this table and conceptual rows of the l2tpTunnelConfigTable." ::= { l2tpObjects 5 } l2tpTunnelStatsEntry OBJECT-TYPE SYNTAX L2tpTunnelStatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An L2TP tunnel interface stats entry." AUGMENTS { l2tpTunnelConfigEntry } ::= { l2tpTunnelStatsTable 1 } L2tpTunnelStatsEntry ::= SEQUENCE { l2tpTunnelStatsLocalTID Integer32, l2tpTunnelStatsRemoteTID Integer32, l2tpTunnelStatsState INTEGER, l2tpTunnelStatsInitiated INTEGER, l2tpTunnelStatsRemoteHostName SnmpAdminString, l2tpTunnelStatsRemoteVendorName SnmpAdminString, l2tpTunnelStatsRemoteFirmwareRev Integer32, l2tpTunnelStatsRemoteProtocolVer OCTET STRING,
l2tpTunnelStatsInitialRemoteRWS Integer32, l2tpTunnelStatsBearerCaps INTEGER, l2tpTunnelStatsFramingCaps INTEGER, l2tpTunnelStatsControlRxPkts Counter32, l2tpTunnelStatsControlRxZLB Counter32, l2tpTunnelStatsControlOutOfSeq Counter32, l2tpTunnelStatsControlOutOfWin Counter32, l2tpTunnelStatsControlTxPkts Counter32, l2tpTunnelStatsControlTxZLB Counter32, l2tpTunnelStatsControlAckTO Counter32, l2tpTunnelStatsCurrentRemoteRWS Gauge32, l2tpTunnelStatsTxSeq Integer32, l2tpTunnelStatsTxSeqAck Integer32, l2tpTunnelStatsRxSeq Integer32, l2tpTunnelStatsRxSeqAck Integer32, l2tpTunnelStatsTotalSessions Counter32, l2tpTunnelStatsFailedSessions Counter32, l2tpTunnelStatsActiveSessions Gauge32, l2tpTunnelStatsLastResultCode Integer32, l2tpTunnelStatsLastErrorCode Integer32, l2tpTunnelStatsLastErrorMessage SnmpAdminString, l2tpTunnelStatsDrainingTunnel TruthValue } l2tpTunnelStatsLocalTID OBJECT-TYPE SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the local tunnel Identifier." REFERENCE "RFC 2661, Section 3.1" ::= { l2tpTunnelStatsEntry 1 } l2tpTunnelStatsRemoteTID OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the remote tunnel Identifier." REFERENCE "RFC 2661, Section 3.1" ::= { l2tpTunnelStatsEntry 2 } l2tpTunnelStatsState OBJECT-TYPE SYNTAX INTEGER { tunnelIdle(1), tunnelConnecting(2), tunnelEstablished(3), tunnelDisconnecting(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "This field contains the current state of the control tunnel." ::= { l2tpTunnelStatsEntry 3 } l2tpTunnelStatsInitiated OBJECT-TYPE SYNTAX INTEGER { locally(1), remotely(2) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object indicates whether the tunnel was initiated locally or by the remote tunnel peer." ::= { l2tpTunnelStatsEntry 4 } l2tpTunnelStatsRemoteHostName OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the host name as discovered
during the tunnel establishment phase (via the Host Name AVP) of the L2TP peer. If the tunnel is idle this object should maintain its value from the last time it was connected." ::= { l2tpTunnelStatsEntry 5 } l2tpTunnelStatsRemoteVendorName OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "This object identifies the vendor name of the peer's L2TP implementation. If the tunnel is idle this object should maintain its value from the last time it was connected." ::= { l2tpTunnelStatsEntry 6 } l2tpTunnelStatsRemoteFirmwareRev OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the tunnel peer's firmware revision number. If the tunnel is idle this object should maintain its value from the last time it was connected." ::= { l2tpTunnelStatsEntry 7 } l2tpTunnelStatsRemoteProtocolVer OBJECT-TYPE SYNTAX OCTET STRING (SIZE(2)) MAX-ACCESS read-only STATUS current DESCRIPTION "This object describes the protocol version and revision of the tunnel peers implementation. The first octet contains the protocol version. The second octet contains the protocol revision." ::= { l2tpTunnelStatsEntry 8 } l2tpTunnelStatsInitialRemoteRWS OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the initial remote peer's receive window size as indicated by the tunnel peer (in the RWS AVP) during the tunnel establishment phase. If the tunnel is idle this object should
maintain its value from the last time it was connected." ::= { l2tpTunnelStatsEntry 9 } l2tpTunnelStatsBearerCaps OBJECT-TYPE SYNTAX INTEGER { none(1), digital(2), analog(3), digitalAnalog(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object describes the Bearer Capabilities of the tunnel peer. If the tunnel is idle this object should maintain its value from the last time it was connected." ::= { l2tpTunnelStatsEntry 10 } l2tpTunnelStatsFramingCaps OBJECT-TYPE SYNTAX INTEGER { none(1), sync(2), async(3), syncAsync(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object describes the Framing Capabilities of the tunnel peer. If the tunnel is idle this object should maintain its value from the last time it was connected." ::= { l2tpTunnelStatsEntry 11 } l2tpTunnelStatsControlRxPkts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the number of control packets received on the tunnel." ::= { l2tpTunnelStatsEntry 12 } l2tpTunnelStatsControlRxZLB OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only
STATUS current DESCRIPTION "This object returns a count of the number of Zero Length Body control packet acknowledgement packets that were received." ::= { l2tpTunnelStatsEntry 13 } l2tpTunnelStatsControlOutOfSeq OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object returns a count of the number of control packets that were not received in the correct order (as per the sequence number) on this tunnel including out of window packets." ::= { l2tpTunnelStatsEntry 14 } l2tpTunnelStatsControlOutOfWin OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the number of control packets that were received outside of the offered receive window. It is implementation specific as to whether these packets are queued or discarded." ::= { l2tpTunnelStatsEntry 15 } l2tpTunnelStatsControlTxPkts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the number of control packets that were transmitted to the tunnel peer." ::= { l2tpTunnelStatsEntry 16 } l2tpTunnelStatsControlTxZLB OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the number of Zero Length Body control packets transmitted to the tunnel
peer." ::= { l2tpTunnelStatsEntry 17 } l2tpTunnelStatsControlAckTO OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object returns a count of the number of control packet timeouts due to the lack of a timely acknowledgement from the tunnel peer." ::= { l2tpTunnelStatsEntry 18 } l2tpTunnelStatsCurrentRemoteRWS OBJECT-TYPE SYNTAX Gauge32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the current remote receive window size as determined by the local flow control mechanism employed." ::= { l2tpTunnelStatsEntry 19 } l2tpTunnelStatsTxSeq OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the next send sequence number for the control channel." ::= { l2tpTunnelStatsEntry 20 } l2tpTunnelStatsTxSeqAck OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the send sequence number that the tunnel peer has acknowledged for the control channel. The flow control state can be determined by subtracting the l2tpTunnelStatsTxSeq from l2tpTunnelStatsTxSeqAck and comparing this value to l2tpTunnelStatsCurrentRemoteRWS (taking into consideration sequence number wraps)." ::= { l2tpTunnelStatsEntry 21 } l2tpTunnelStatsRxSeq OBJECT-TYPE SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the next receive sequence number expected to be received on this control channel." ::= { l2tpTunnelStatsEntry 22 } l2tpTunnelStatsRxSeqAck OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the last receive sequence number that was acknowledged back to the tunnel peer for the control channel." ::= { l2tpTunnelStatsEntry 23 } l2tpTunnelStatsTotalSessions OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the total number of sessions that this tunnel has successfully connected through to its tunnel peer since this tunnel was created." ::= { l2tpTunnelStatsEntry 24 } l2tpTunnelStatsFailedSessions OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the total number of sessions that were initiated but failed to reach the established phase." ::= { l2tpTunnelStatsEntry 25 } l2tpTunnelStatsActiveSessions OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the total number of sessions in the established state for this tunnel." ::= { l2tpTunnelStatsEntry 26 } l2tpTunnelStatsLastResultCode OBJECT-TYPE
SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the last value of the result code as described in the Result Code AVP which caused the tunnel to disconnect." ::= { l2tpTunnelStatsEntry 27 } l2tpTunnelStatsLastErrorCode OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the last value of the error code as described in the Result Code AVP which caused the tunnel to disconnect." ::= { l2tpTunnelStatsEntry 28 } l2tpTunnelStatsLastErrorMessage OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the last value of the optional message as described in the Result Code AVP which caused the tunnel to disconnect." ::= { l2tpTunnelStatsEntry 29 } l2tpTunnelStatsDrainingTunnel OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "This object indicates if this tunnel is draining off sessions. This object will return false(2) when the tunnel is not draining sessions or after the last session has disconnected when the tunnel is in the draining state." ::= { l2tpTunnelStatsEntry 30 } -- -- { l2tpObjects 6 } reserved for future use -- -- -- The L2TP Session Status and Statistics Table --
l2tpSessionStatsTable OBJECT-TYPE SYNTAX SEQUENCE OF L2tpSessionStatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The L2TP session status and statistics table. This table contains the objects that can be used to describe the current status and statistics of a single L2TP tunneled session." ::= { l2tpObjects 7 } l2tpSessionStatsEntry OBJECT-TYPE SYNTAX L2tpSessionStatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An L2TP session interface stats entry." INDEX { l2tpSessionStatsTunnelIfIndex, l2tpSessionStatsLocalSID } ::= { l2tpSessionStatsTable 1 } L2tpSessionStatsEntry ::= SEQUENCE { l2tpSessionStatsTunnelIfIndex InterfaceIndex, l2tpSessionStatsIfIndex InterfaceIndex, l2tpSessionStatsLocalSID Integer32, l2tpSessionStatsRemoteSID Integer32, l2tpSessionStatsUserName SnmpAdminString, l2tpSessionStatsState INTEGER, l2tpSessionStatsCallType INTEGER, l2tpSessionStatsCallSerialNumber Unsigned32, l2tpSessionStatsTxConnectSpeed Unsigned32, l2tpSessionStatsRxConnectSpeed Unsigned32, l2tpSessionStatsCallBearerType INTEGER, l2tpSessionStatsFramingType INTEGER, l2tpSessionStatsPhysChanId
Unsigned32, l2tpSessionStatsDNIS SnmpAdminString, l2tpSessionStatsCLID SnmpAdminString, l2tpSessionStatsSubAddress SnmpAdminString, l2tpSessionStatsPrivateGroupID SnmpAdminString, l2tpSessionStatsProxyLcp TruthValue, l2tpSessionStatsAuthMethod INTEGER, l2tpSessionStatsSequencingState INTEGER, l2tpSessionStatsOutSequence Counter32, l2tpSessionStatsReassemblyTO Counter32, l2tpSessionStatsTxSeq Integer32, l2tpSessionStatsRxSeq Integer32 } l2tpSessionStatsTunnelIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object identifies the session's associated L2TP tunnel ifIndex value." ::= { l2tpSessionStatsEntry 1 } l2tpSessionStatsIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS read-only STATUS current DESCRIPTION "This object identifies the ifIndex value of the interface from which PPP packets are being tunneled. For example this could be a DS0 ifIndex on a LAC or it would be the PPP ifIndex on the LNS." ::= { l2tpSessionStatsEntry 2 } l2tpSessionStatsLocalSID OBJECT-TYPE SYNTAX Integer32 (1..65535) MAX-ACCESS not-accessible
STATUS current DESCRIPTION "This object contains the local assigned session identifier for this session." REFERENCE "RFC 2661, Section 3.1" ::= { l2tpSessionStatsEntry 3 } l2tpSessionStatsRemoteSID OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the remote assigned session identifier for this session. When a session is starting this value may be zero until the remote tunnel endpoint has responded." REFERENCE "RFC 2661, Section 3.1" ::= { l2tpSessionStatsEntry 4 } l2tpSessionStatsUserName OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "This object identifies the peer session name on this interface. This is typically the login name of the remote user. If the user name is unknown to the local tunnel peer then this object will contain a null string." ::= { l2tpSessionStatsEntry 5 } l2tpSessionStatsState OBJECT-TYPE SYNTAX INTEGER { sessionIdle(1), sessionConnecting(2), sessionEstablished(3), sessionDisconnecting(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the current state of the session." ::= { l2tpSessionStatsEntry 6 } l2tpSessionStatsCallType OBJECT-TYPE SYNTAX INTEGER { lacIncoming(1),
lnsIncoming(2), lacOutgoing(3), lnsOutgoing(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object indicates the type of call and the role this tunnel peer is providing for this session. For example, lacIncoming(1) indicates that this tunnel peer is acting as a LAC and generated a Incoming-Call-Request to the tunnel peer (the LNS). Note that tunnel peers can be both LAC and LNS simultaneously." ::= { l2tpSessionStatsEntry 7 } l2tpSessionStatsCallSerialNumber OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the serial number that has been assigned to this session." ::= { l2tpSessionStatsEntry 8 } l2tpSessionStatsTxConnectSpeed OBJECT-TYPE SYNTAX Unsigned32 UNITS "bits per second" MAX-ACCESS read-only STATUS current DESCRIPTION "This object returns the last known transmit baud rate for this session." ::= { l2tpSessionStatsEntry 9 } l2tpSessionStatsRxConnectSpeed OBJECT-TYPE SYNTAX Unsigned32 UNITS "bits per second" MAX-ACCESS read-only STATUS current DESCRIPTION "This object returns the last known receive baud rate for this session established." ::= { l2tpSessionStatsEntry 10 } l2tpSessionStatsCallBearerType OBJECT-TYPE SYNTAX INTEGER { none(1),
digital(2), analog(3) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object describes the bearer type of this session." ::= { l2tpSessionStatsEntry 11 } l2tpSessionStatsFramingType OBJECT-TYPE SYNTAX INTEGER { none(1), sync(2), async(3) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object describes the framing type of this session." ::= { l2tpSessionStatsEntry 12 } l2tpSessionStatsPhysChanId OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the physical channel identifier for the session." ::= { l2tpSessionStatsEntry 13 } l2tpSessionStatsDNIS OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "This object identifies the Dialed Number Information String that the LAC obtained from the network for the session. If no DNIS was provided then a null string will be returned." ::= { l2tpSessionStatsEntry 14 } l2tpSessionStatsCLID OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION
"This object identifies the Calling Line ID that the LAC obtained from the network for the session. If no CLID was provided then a null string will be returned." ::= { l2tpSessionStatsEntry 15 } l2tpSessionStatsSubAddress OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "This object identifies the Sub Address that the LAC obtained from the network for the session. If no Sub Address was provided then a null string will be returned." ::= { l2tpSessionStatsEntry 16 } l2tpSessionStatsPrivateGroupID OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "This object identifies the Private Group Identifier used for this tunneled session. If no Private Group Identifier was provided then a null string will be returned." ::= { l2tpSessionStatsEntry 17 } l2tpSessionStatsProxyLcp OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates whether the LAC performed proxy LCP for this session." ::= { l2tpSessionStatsEntry 18 } l2tpSessionStatsAuthMethod OBJECT-TYPE SYNTAX INTEGER { none(1), text(2), pppChap(3), pppPap(4), pppEap(5), pppMsChapV1(6), pppMsChapV2(7), other(8) }
MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the proxy authentication method employed by the LAC for the session. If l2tpSessionProxyLcp is false(2) this object should not be interpreted." ::= { l2tpSessionStatsEntry 19 } l2tpSessionStatsSequencingState OBJECT-TYPE SYNTAX INTEGER { none(1), remote(2), local(3), both(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object defines which tunnel peers have requested payload sequencing. The value of both(4) indicates that both peers have requested payload sequencing." ::= { l2tpSessionStatsEntry 20 } l2tpSessionStatsOutSequence OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object returns the total number of packets received for this session which were received out of sequence." ::= { l2tpSessionStatsEntry 21 } l2tpSessionStatsReassemblyTO OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object returns the number of reassembly timeouts that have occurred for this session." ::= { l2tpSessionStatsEntry 22 } l2tpSessionStatsTxSeq OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current
DESCRIPTION "This object contains the next send sequence number for for this session." ::= { l2tpSessionStatsEntry 23 } l2tpSessionStatsRxSeq OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the next receive sequence number expected to be received on this session." ::= { l2tpSessionStatsEntry 24 } -- -- The L2TP Tunnel Mapping Table -- l2tpTunnelMapTable OBJECT-TYPE SYNTAX SEQUENCE OF L2tpTunnelMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The L2TP Tunnel index mapping table. This table is intended to assist management applications to quickly determine what the ifIndex value is for a given local tunnel identifier." ::= { l2tpObjects 8 } l2tpTunnelMapEntry OBJECT-TYPE SYNTAX L2tpTunnelMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An L2TP tunnel index map entry." INDEX { l2tpTunnelMapLocalTID } ::= { l2tpTunnelMapTable 1 } L2tpTunnelMapEntry ::= SEQUENCE { l2tpTunnelMapLocalTID Integer32, l2tpTunnelMapIfIndex InterfaceIndex } l2tpTunnelMapLocalTID OBJECT-TYPE SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object contains the local tunnel Identifier." REFERENCE "RFC 2661, Section 3.1" ::= { l2tpTunnelMapEntry 1 } l2tpTunnelMapIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS read-only STATUS current DESCRIPTION "This value for this object is equal to the value of ifIndex of the Interfaces MIB for tunnel interfaces of type L2TP." ::= { l2tpTunnelMapEntry 2 } -- -- The L2TP Session Mapping Table -- l2tpSessionMapTable OBJECT-TYPE SYNTAX SEQUENCE OF L2tpSessionMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The L2TP Session index mapping table. This table is intended to assist management applications to map interfaces to a tunnel and session identifier." ::= { l2tpObjects 9 } l2tpSessionMapEntry OBJECT-TYPE SYNTAX L2tpSessionMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An L2TP Session index map entry." INDEX { l2tpSessionMapIfIndex } ::= { l2tpSessionMapTable 1 } L2tpSessionMapEntry ::= SEQUENCE { l2tpSessionMapIfIndex InterfaceIndex, l2tpSessionMapTunnelIfIndex InterfaceIndex, l2tpSessionMapLocalSID
Integer32, l2tpSessionMapStatus RowStatus } l2tpSessionMapIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object identifies the ifIndex value of the interface which is receiving or sending its packets over an L2TP tunnel. For example this could be a DS0 ifIndex on a LAC or a PPP ifIndex on the LNS." ::= { l2tpSessionMapEntry 1 } l2tpSessionMapTunnelIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS read-create STATUS current DESCRIPTION "This object identifies the sessions associated L2TP tunnel ifIndex value. When this object is set it provides a binding between a particular interface identified by l2tpSessionMapIfIndex to a particular tunnel." ::= { l2tpSessionMapEntry 2 } l2tpSessionMapLocalSID OBJECT-TYPE SYNTAX Integer32 (1..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the local assigned session identifier for this session." REFERENCE "RFC 2661, Section 3.1" ::= { l2tpSessionMapEntry 3 } l2tpSessionMapStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The status of this session map entry." ::= { l2tpSessionMapEntry 4 } -- -- { l2tpIpUdpObjects 1 } reserved for future use
-- -- The L2TP UDP/IP Transport Status and Statistics Table -- l2tpUdpStatsTable OBJECT-TYPE SYNTAX SEQUENCE OF L2tpUdpStatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The L2TP UDP/IP transport stats table. This table contains objects that can be used to describe the current status and statistics of the UDP/IP L2TP tunnel transport." ::= { l2tpIpUdpObjects 2 } l2tpUdpStatsEntry OBJECT-TYPE SYNTAX L2tpUdpStatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An L2TP UDP/IP transport stats entry." INDEX { l2tpUdpStatsIfIndex } ::= { l2tpUdpStatsTable 1 } L2tpUdpStatsEntry ::= SEQUENCE { l2tpUdpStatsIfIndex InterfaceIndex, l2tpUdpStatsPeerPort Integer32, l2tpUdpStatsLocalPort Integer32 } l2tpUdpStatsIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "This value for this object is equal to the value of ifIndex of the Interfaces MIB for tunnel interfaces of type L2TP and which have a L2TP transport of UDP/IP." ::= { l2tpUdpStatsEntry 1 } l2tpUdpStatsPeerPort OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only
STATUS current DESCRIPTION "This object reflects the peer's UDP port number used for this tunnel. When not known a value of zero should be returned." ::= { l2tpUdpStatsEntry 2 } l2tpUdpStatsLocalPort OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "This object reflects the local UDP port number that this tunnel is bound to." ::= { l2tpUdpStatsEntry 3 } -- -- Definition of generic L2TP notifications -- l2tpTunnelAuthFailure NOTIFICATION-TYPE OBJECTS { l2tpTunnelStatsInitiated, l2tpTunnelStatsRemoteHostName } STATUS current DESCRIPTION "A l2tpTunnelAuthFailure trap signifies that an attempt to establish a tunnel to a remote peer has failed authentication." ::= { l2tpNotifications 1 } -- -- conformance information -- l2tpGroups OBJECT IDENTIFIER ::= { l2tpConformance 1 } l2tpCompliances OBJECT IDENTIFIER ::= { l2tpConformance 2 } -- -- compliance statements -- l2tpMIBFullCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "When this MIB is implemented with support for read-create and read-write, then such an
implementation can claim full compliance. Such an implementation can then be both monitored and configured with this MIB." MODULE -- this module -- unconditionally mandatory groups MANDATORY-GROUPS { l2tpConfigGroup, l2tpStatsGroup, l2tpTrapGroup } -- conditionally mandatory groups GROUP l2tpIpUdpGroup DESCRIPTION "This group is mandatory for implementations that support L2TP over UDP/IP." -- optional groups GROUP l2tpDomainGroup DESCRIPTION "This group is optional for L2TP devices that group tunnel endpoints into tunnel domains." -- optional Mapping Group GROUP l2tpMappingGroup DESCRIPTION "This group is optional for L2TP devices that provide index mapping." -- optional Security Group GROUP l2tpSecurityGroup DESCRIPTION "This group is optional for SNMP agents which support both authentication and privacy of SNMP messages for the management of L2TP keys." -- optional High Capacity Group GROUP l2tpHCPacketGroup DESCRIPTION "This group is mandatory for implementations that support the l2tpDomainGroup AND could potentially overflow the L2TP Domain 32-bit counters is less than one hour." ::= { l2tpCompliances 1 } l2tpMIBReadOnlyCompliance MODULE-COMPLIANCE
STATUS current DESCRIPTION "When this MIB is implemented without support for read-create and read-write (i.e. in read-only mode), then such an implementation can claim read-only compliance. Such an implementation can then be monitored but can not be configured with this MIB." MODULE -- this module -- unconditionally mandatory groups MANDATORY-GROUPS { l2tpConfigGroup, l2tpStatsGroup, l2tpTrapGroup } OBJECT l2tpAdminState MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDrainTunnels MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigDomainId MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigHelloInterval MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigIdleTimeout MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigControlRWS MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigControlMaxRetx
MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigControlMaxRetxTO MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigPayloadSeq MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigReassemblyTO MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigTransport MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigDrainTunnel MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigProxyPPPAuth MIN-ACCESS read-only DESCRIPTION "Write access is not required." -- conditionally mandatory groups GROUP l2tpIpUdpGroup DESCRIPTION "This group is mandatory for implementations that support L2TP over UDP/IP." -- optional groups GROUP l2tpDomainGroup DESCRIPTION "This group is optional for L2TP devices that group tunnel endpoints into tunnel domains." OBJECT l2tpDomainConfigAdminState MIN-ACCESS read-only
DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigDrainTunnels MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigTunnelHelloInt MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigTunnelIdleTO MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigControlRWS MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigControlMaxRetx MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigControlMaxRetxTO MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigPayloadSeq MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigReassemblyTO MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigProxyPPPAuth MIN-ACCESS read-only DESCRIPTION "Write access is not required."
OBJECT l2tpDomainConfigStorageType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." -- optional Mapping Group GROUP l2tpMappingGroup DESCRIPTION "This group is optional for L2TP devices that provide index mapping." OBJECT l2tpSessionMapTunnelIfIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpSessionMapStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." -- optional Security Group GROUP l2tpSecurityGroup DESCRIPTION "This group is optional for SNMP agents which support both authentication and privacy of SNMP messages for the management of L2TP keys." OBJECT l2tpDomainConfigAuth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigSecret MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpDomainConfigTunnelSecurity MIN-ACCESS read-only DESCRIPTION "Write access is not required."
OBJECT l2tpTunnelConfigAuth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigSecret MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT l2tpTunnelConfigSecurity MIN-ACCESS read-only DESCRIPTION "Write access is not required." -- optional High Capacity Group GROUP l2tpHCPacketGroup DESCRIPTION "This group is mandatory for implementations that support the l2tpDomainGroup AND could potentially overflow the L2TP Domain 32-bit counters is less than one hour." ::= { l2tpCompliances 2 } -- units of conformance l2tpConfigGroup OBJECT-GROUP OBJECTS { l2tpAdminState, l2tpDrainTunnels, l2tpTunnelConfigDomainId, l2tpTunnelConfigHelloInterval, l2tpTunnelConfigIdleTimeout, l2tpTunnelConfigControlRWS, l2tpTunnelConfigControlMaxRetx, l2tpTunnelConfigControlMaxRetxTO, l2tpTunnelConfigPayloadSeq, l2tpTunnelConfigReassemblyTO, l2tpTunnelConfigTransport, l2tpTunnelConfigDrainTunnel, l2tpTunnelConfigProxyPPPAuth } STATUS current DESCRIPTION "A collection of objects providing configuration information of the L2TP protocol, tunnels and sessions."
::= { l2tpGroups 1 } l2tpStatsGroup OBJECT-GROUP OBJECTS { l2tpProtocolVersions, l2tpVendorName, l2tpFirmwareRev, l2tpDrainingTunnels, l2tpTunnelStatsLocalTID, l2tpTunnelStatsRemoteTID, l2tpTunnelStatsState, l2tpTunnelStatsInitiated, l2tpTunnelStatsRemoteHostName, l2tpTunnelStatsRemoteVendorName, l2tpTunnelStatsRemoteFirmwareRev, l2tpTunnelStatsRemoteProtocolVer, l2tpTunnelStatsInitialRemoteRWS, l2tpTunnelStatsBearerCaps, l2tpTunnelStatsFramingCaps, l2tpTunnelStatsControlRxPkts, l2tpTunnelStatsControlRxZLB, l2tpTunnelStatsControlOutOfSeq, l2tpTunnelStatsControlOutOfWin, l2tpTunnelStatsControlTxPkts, l2tpTunnelStatsControlTxZLB, l2tpTunnelStatsControlAckTO, l2tpTunnelStatsCurrentRemoteRWS, l2tpTunnelStatsTxSeq, l2tpTunnelStatsTxSeqAck, l2tpTunnelStatsRxSeq, l2tpTunnelStatsRxSeqAck, l2tpTunnelStatsTotalSessions, l2tpTunnelStatsFailedSessions, l2tpTunnelStatsActiveSessions, l2tpTunnelStatsLastResultCode, l2tpTunnelStatsLastErrorCode, l2tpTunnelStatsLastErrorMessage, l2tpTunnelStatsDrainingTunnel, l2tpSessionStatsIfIndex, l2tpSessionStatsRemoteSID, l2tpSessionStatsUserName, l2tpSessionStatsState, l2tpSessionStatsCallType, l2tpSessionStatsCallSerialNumber, l2tpSessionStatsTxConnectSpeed, l2tpSessionStatsRxConnectSpeed, l2tpSessionStatsCallBearerType, l2tpSessionStatsFramingType,
l2tpSessionStatsPhysChanId, l2tpSessionStatsDNIS, l2tpSessionStatsCLID, l2tpSessionStatsSubAddress, l2tpSessionStatsPrivateGroupID, l2tpSessionStatsProxyLcp, l2tpSessionStatsAuthMethod, l2tpSessionStatsSequencingState, l2tpSessionStatsOutSequence, l2tpSessionStatsReassemblyTO, l2tpSessionStatsTxSeq, l2tpSessionStatsRxSeq } STATUS current DESCRIPTION "A collection of objects providing status and statistics of the L2TP protocol, tunnels and sessions." ::= { l2tpGroups 2 } l2tpIpUdpGroup OBJECT-GROUP OBJECTS { l2tpUdpStatsPeerPort, l2tpUdpStatsLocalPort } STATUS current DESCRIPTION "A collection of objects providing status and statistics of the L2TP UDP/IP transport layer." ::= { l2tpGroups 3 } l2tpDomainGroup OBJECT-GROUP OBJECTS { l2tpDomainConfigAdminState, l2tpDomainConfigDrainTunnels, l2tpDomainConfigTunnelHelloInt, l2tpDomainConfigTunnelIdleTO, l2tpDomainConfigControlRWS, l2tpDomainConfigControlMaxRetx, l2tpDomainConfigControlMaxRetxTO, l2tpDomainConfigPayloadSeq, l2tpDomainConfigReassemblyTO, l2tpDomainConfigProxyPPPAuth, l2tpDomainConfigStorageType, l2tpDomainConfigStatus, l2tpDomainStatsTotalTunnels, l2tpDomainStatsFailedTunnels, l2tpDomainStatsFailedAuths,
l2tpDomainStatsActiveTunnels, l2tpDomainStatsTotalSessions, l2tpDomainStatsFailedSessions, l2tpDomainStatsActiveSessions, l2tpDomainStatsDrainingTunnels, l2tpDomainStatsControlRxOctets, l2tpDomainStatsControlRxPkts, l2tpDomainStatsControlTxOctets, l2tpDomainStatsControlTxPkts, l2tpDomainStatsPayloadRxOctets, l2tpDomainStatsPayloadRxPkts, l2tpDomainStatsPayloadRxDiscs, l2tpDomainStatsPayloadTxOctets, l2tpDomainStatsPayloadTxPkts } STATUS current DESCRIPTION "A collection of objects providing configuration, status and statistics of L2TP tunnel domains." ::= { l2tpGroups 4 } l2tpMappingGroup OBJECT-GROUP OBJECTS { l2tpTunnelMapIfIndex, l2tpSessionMapTunnelIfIndex, l2tpSessionMapLocalSID, l2tpSessionMapStatus } STATUS current DESCRIPTION "A collection of objects providing index mapping." ::= { l2tpGroups 5 } l2tpSecurityGroup OBJECT-GROUP OBJECTS { l2tpDomainConfigAuth, l2tpDomainConfigSecret, l2tpDomainConfigTunnelSecurity, l2tpTunnelConfigAuth, l2tpTunnelConfigSecret, l2tpTunnelConfigSecurity } STATUS current DESCRIPTION "A collection of objects providing L2TP security configuration." ::= { l2tpGroups 6 }
l2tpTrapGroup NOTIFICATION-GROUP NOTIFICATIONS { l2tpTunnelAuthFailure } STATUS current DESCRIPTION "A collection of L2TP trap events as specified in NOTIFICATION-TYPE constructs." ::= { l2tpGroups 7 } l2tpHCPacketGroup OBJECT-GROUP OBJECTS { l2tpDomainStatsControlHCRxOctets, l2tpDomainStatsControlHCRxPkts, l2tpDomainStatsControlHCTxOctets, l2tpDomainStatsControlHCTxPkts, l2tpDomainStatsPayloadHCRxOctets, l2tpDomainStatsPayloadHCRxPkts, l2tpDomainStatsPayloadHCRxDiscs, l2tpDomainStatsPayloadHCTxOctets, l2tpDomainStatsPayloadHCTxPkts } STATUS current DESCRIPTION "A collection of objects providing High Capacity 64-bit counter objects." ::= { l2tpGroups 8 } END5.0 Security Considerations
This MIB contains readable objects whose values provide information related to L2TP tunnel interfaces. There are also a number of objects that have a MAX-ACCESS clause of read-write and/or read- create, such as those which allow an administrator to dynamically configure tunnels. While unauthorized access to the readable objects is relatively innocuous, unauthorized access to the write-able objects could cause a denial of service, or could cause unauthorized creation and/or manipulation of tunnels. Hence, the support for SET operations in a non-secure environment without proper protection can have a negative effect on network operations.
SNMPv1 by itself is such an insecure environment. Even if the network itself is secure (for example by using IPSec [RFC2401]), even then, there is no control as to who on the secure network is allowed to access and SET (change/create/delete) the objects in this MIB. If the agent allows configuring keys (for example the l2tpDomainConfigSecret object) via SNMP, for use by L2TP, then the security of L2TP is at best only as secure as SNMP. For this reason, all objects in the l2tpSecurityGroup MUST NOT be accessible via unencrypted messages. It is also recommended that keys not be made visible through SNMP GET (or GET-NEXT or GET-BULK) messages, even if encryption is used. It is recommended that the implementers consider the security features as provided by the SNMPv3 framework. Specifically, the use of the User-based Security Model RFC 2574 [RFC2574] and the View- based Access Control Model RFC 2575 [RFC2575] is recommended. It is then a customer/user responsibility to ensure that the SNMP entity giving access to this MIB, is properly configured to give access to those objects only to those principals (users) that have legitimate rights to access them.6.0 Acknowledgements
Many thanks to the L2TP working group members who provided valuable input into the content and structure of this MIB.7.0 References
[RFC2571] Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for Describing SNMP Management Frameworks", RFC 2571, April 1999. [RFC1155] Rose, M. and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", STD 16, RFC 1155, May 1990. [RFC1212] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16, RFC 1212, March 1991. [RFC1215] Rose, M., "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991. [RFC2578] 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.
[RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999. [RFC2580] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999. [RFC1157] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple Network Management Protocol", STD 15, RFC 1157, May 1990. [RFC1901] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, January 1996. [RFC1906] 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. [RFC2572] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2572, April 1999. [RFC2574] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2574, April 1999. [RFC1905] 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. [RFC2573] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC 2573, April 1999. [RFC2575] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2575, April 1999. [RFC2570] Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction to Version 3 of the Internet-standard Network Management Framework", RFC 2570, April 1999. [RFC2661] Townsley, W., Valencia, A., Rubens, A., Pall, G., Zorn, G. and B. Palter, "Layer Two Tunneling Protocol - L2TP", RFC 2661, August 1999.
[RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB", RFC 2863, June 2000. [RFC2667] Thaler, D., "IP Tunnel MIB", RFC 2667, August 1999. [RFC2401] Kent, S. and R. Atkinson, "Security Architecture for the Internet Protocol", RFC 2401, November 1998.8.0 Authors' Addresses
Evan Caves Occam Networks Inc. 77 Robin Hill Road Santa Barbara, CA 93117 EMail: evan@occamnetworks.com Pat Calhoun Black Storm Networks 110 Nortech Parkway San Jose, CA 95134 EMail: pcalhoun@bstormnetworks.com Ross Wheeler DoubleWide Software, Inc. 2953 Bunker Hill Lane Suite 101 Santa Clara, CA 95054 Email: ross@doublewidesoft.com
9.0 Full Copyright Statement
Copyright (C) The Internet Society (2002). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Acknowledgement Funding for the RFC Editor function is currently provided by the Internet Society.