J. Chesterfield, Editor Internet Draft U. of Cambridge Computer Lab Document: draft-ietf-magma-mgmd-mib-03.txt Expires: November 2004 May 2004 Multicast Group Membership Discovery MIB Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. Abstract This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes objects used for managing the Internet Group Management Protocol (IGMP) and the Multicast Listener Discovery (MLD) protocol. Table of Contents 1. Introduction....................................................2 2. The Internet-Standard Management Framework......................2 3. Overview........................................................2 4. Definitions.....................................................2 5. Security Considerations........................................26 6. Contributors...................................................27 7. Acknowledgements...............................................27 8. Author's Address...............................................28 9. References.....................................................28 10. Full Copyright Statement......................................28 1. Introduction This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes objects used for managing the Internet Group Management Protocol (IGMP), version 1 [5], version 2 [6] or version 3 [7] and the Multicast Listener Discovery (MLD) protocol version 1 [8] or version 2 [9]. Both protocols provide multicast Chesterfield I-D - Expires November 2004 [Page 1] Multicast Group Membership Discovery MIB membership discovery capability, IGMP pertains to IP version 4 clients, and MLD for IP version 6 clients. This version of the MIB supercedes both rfc2933 [10] and rfc3019 [11], incorporating a generic interface for both IGMP and MLD implementations, and changes to enable "source filtering" in multicast clients. The MIB encompasses both router and host nodes with relevant management objects defined for each. 2. The Internet-Standard Management Framework For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer to section 7 of RFC 3410 [4]. Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. MIB objects are generally accessed through the Simple Network Management Protocol (SNMP). Objects in the MIB are defined using the mechanisms defined in the Structure of Management Information (SMI). This memo specifies a MIB module that is compliant to the SMIv2, which is described in STD 58, RFC 2578 [1], STD 58, RFC 2579 [2] and STD 58, RFC 2580 [3]. 3. Overview This MIB module contains seven tables: 1. the MGMD Host Interface Table which contains one row for each interface on which MGMD is enabled on a host, 2. the MGMD Router Interface Table which contains one row for each interface on which MGMD is enabled on a router, 3. the MGMD Host Cache Table which contains one row for each IP multicast group for which there are members on a particular interface on a host, 4. the MGMD Router Cache Table which contains one row for each IP multicast group for which there are members on a particular interface on a router, 5. the reverse MGMD Host Table which contains one row for each interface for which there are active multicast groups on a host, 6. the reverse MGMD Router Table which contains one row for each interface for which there are active multicast groups on a router, 7. the MGMD SrcList Table which contains one row for each entry in the source filter record for an interface and multicast group pair. All tables are intended for EITHER routers or hosts as indicated by the name with the exception of the source list table which is applicable to both. 4. Definitions MGMD-STD-MIB DEFINITIONS ::= BEGIN IMPORTS Chesterfield Internet Draft - Expires November 2004 [Page 2] Multicast Group Membership Discovery MIB MODULE-IDENTITY, OBJECT-TYPE, mib-2, Counter32, Gauge32, Unsigned32, Integer32, TimeTicks FROM SNMPv2-SMI InetAddress, InetAddressType FROM INET-ADDRESS-MIB RowStatus, TruthValue FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF InterfaceIndexOrZero, InterfaceIndex FROM IF-MIB; mgmdStdMIB MODULE-IDENTITY LAST-UPDATED "200302240000Z" -- October 24, 2003 ORGANIZATION "IETF MAGMA Working Group." CONTACT-INFO " Julian Chesterfield University of Cambridge, Computer Laboratory, 15 JJ Thompson Avenue, Cambridge, CB3 0FD UK EMail: julian.chesterfield@cl.cam.ac.uk" DESCRIPTION "The MIB module for MGMD Management." REVISION "200310240000Z" -- October 24, 2003 DESCRIPTION "New version of MGMD combining RFC 2933 and RFC 3019. Includes IGMPv3 and MLDv2 source filtering changes." ::= { mib-2 85 } mgmdMIBObjects OBJECT IDENTIFIER ::= { mgmdStdMIB 1 } -- -- The MGMD Host Interface Table -- mgmdHostInterfaceTable OBJECT-TYPE SYNTAX SEQUENCE OF MgmdHostInterfaceEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the interfaces on which IGMP or MLD is enabled." ::= { mgmdMIBObjects 3 } mgmdHostInterfaceEntry OBJECT-TYPE SYNTAX MgmdHostInterfaceEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) representing an interface on which IGMP or MLD is enabled." INDEX { mgmdHostInterfaceIfIndex, mgmdHostInterfaceQuerierType } ::= { mgmdHostInterfaceTable 1 } MgmdHostInterfaceEntry ::= SEQUENCE { mgmdHostInterfaceIfIndex InterfaceIndex, mgmdHostInterfaceQuerierType InetAddressType, Chesterfield Internet Draft - Expires November 2004 [Page 3] Multicast Group Membership Discovery MIB mgmdHostInterfaceQuerier InetAddress, mgmdHostInterfaceStatus RowStatus, mgmdHostInterfaceVersion Unsigned32, mgmdHostInterfaceVersion1QuerierTimer TimeTicks, mgmdHostInterfaceVersion2QuerierTimer TimeTicks } mgmdHostInterfaceIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The ifIndex value of the interface for which IGMP or MLD is enabled. The table is indexed by the ifIndex value and the InetAddressType to allow for interfaces which may be configured in both IPv4 and IPv6 modes." ::= { mgmdHostInterfaceEntry 1 } mgmdHostInterfaceQuerierType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address type of this interface. This entry along with the ifIndex value acts as the index to the mgmdHostInterface table. A physical interface may be configured in multiple modes concurrently, e.g. in IPv4 and IPv6 modes connected to the same interface, however the traffic is considered to be logically separate." ::= { mgmdHostInterfaceEntry 2 } mgmdHostInterfaceQuerier OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The address of the IGMP or MLD Querier on the IP subnet to which this interface is attached. The InetAddressType, e.g. IPv4 or IPv6, is identified by the mgmdHostInterfaceQuerierType variable in the mgmdHostInterface table." ::= { mgmdHostInterfaceEntry 3 } mgmdHostInterfaceStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The activation of a row enables the host side of IGMP or MLD on the interface. The destruction of a row disables the host side of IGMP or MLD on the interface." ::= { mgmdHostInterfaceEntry 4 } mgmdHostInterfaceVersion OBJECT-TYPE SYNTAX Unsigned32 (1..3) MAX-ACCESS read-create STATUS current DESCRIPTION "The maximum version of MGMD which the host can run on this interface. Chesterfield Internet Draft - Expires November 2004 [Page 4] Multicast Group Membership Discovery MIB A value of 1 is only applicable for IPv4, and indicates that the host only supports IGMPv1 on the interface. A value of 2 indicates that the host also supports IGMPv2 (for IPv4) or MLDv1 (for IPv6). A value of 3 indicates that the host also supports IGMPv3 (for IPv4) or MLDv2 (for IPv6)." DEFVAL { 3 } ::= { mgmdHostInterfaceEntry 5 } mgmdHostInterfaceVersion1QuerierTimer OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time remaining until the host assumes that there are no MGMDv1 routers present on the interface. While this is non-zero, the host will reply to all queries with version 1 membership reports. This variable applies to MGMDv2 or 3 hosts that are forced to run in v1 for compatibility with v1 hosts or routers present on the interface. This object may only be present when the corresponding value of mgmdHostCacheAddressType is IPv4." ::= { mgmdHostInterfaceEntry 6 } mgmdHostInterfaceVersion2QuerierTimer OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time remaining until the host assumes that there are no MGMDv2 routers present on the interface. While this is non-zero, the host will reply to all queries with version 1 or 2 membership reports. This variable applies to MGMDv3 hosts that are forced to run in v2 for compatibility with v2 hosts or routers present on the interface." ::= { mgmdHostInterfaceEntry 7 } -- -- The MGMD Router Interface Table -- mgmdRouterInterfaceTable OBJECT-TYPE SYNTAX SEQUENCE OF MgmdRouterInterfaceEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the interfaces on which IGMP or MLD is enabled." ::= { mgmdMIBObjects 4 } Chesterfield Internet Draft - Expires November 2004 [Page 5] Multicast Group Membership Discovery MIB mgmdRouterInterfaceEntry OBJECT-TYPE SYNTAX MgmdRouterInterfaceEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) representing an interface on which IGMP or MLD is enabled." INDEX { mgmdRouterInterfaceIfIndex, mgmdRouterInterfaceQuerierType } ::= { mgmdRouterInterfaceTable 1 } MgmdRouterInterfaceEntry ::= SEQUENCE { mgmdRouterInterfaceIfIndex InterfaceIndex, mgmdRouterInterfaceQuerierType InetAddressType, mgmdRouterInterfaceQuerier InetAddress, mgmdRouterInterfaceQueryInterval Unsigned32, mgmdRouterInterfaceStatus RowStatus, mgmdRouterInterfaceVersion Unsigned32, mgmdRouterInterfaceQueryMaxResponseTime Unsigned32, mgmdRouterInterfaceQuerierUpTime TimeTicks, mgmdRouterInterfaceQuerierExpiryTime TimeTicks, mgmdRouterInterfaceWrongVersionQueries Counter32, mgmdRouterInterfaceJoins Counter32, mgmdRouterInterfaceProxyIfIndex InterfaceIndexOrZero, mgmdRouterInterfaceGroups Gauge32, mgmdRouterInterfaceRobustness Unsigned32, mgmdRouterInterfaceLastMembQueryIntvl Unsigned32 } mgmdRouterInterfaceIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The ifIndex value of the interface for which IGMP or MLD is enabled. The table is indexed by the ifIndex value and the InetAddressType to allow for interfaces which may be configured in both IPv4 and IPv6 modes." ::= { mgmdRouterInterfaceEntry 1 } mgmdRouterInterfaceQuerierType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address type of this interface. This entry along with the ifIndex value acts as the index to the mgmdRouterInterface table. A physical interface may be configured in multiple modes concurrently, e.g. in IPv4 and IPv6 modes connected to the same interface, however the traffic is considered to be logically separate." ::= { mgmdRouterInterfaceEntry 2 } mgmdRouterInterfaceQuerier OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current Chesterfield Internet Draft - Expires November 2004 [Page 6] Multicast Group Membership Discovery MIB DESCRIPTION "The address of the IGMP or MLD Querier on the IP subnet to which this interface is attached. The InetAddressType, e.g. IPv4 or IPv6, is identified by the mgmdRouterInterfaceQuerierType variable in the mgmdRouterInterface table." ::= { mgmdRouterInterfaceEntry 3 } mgmdRouterInterfaceQueryInterval OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The frequency at which IGMP or MLD Host-Query packets are transmitted on this interface." DEFVAL { 125 } ::= { mgmdRouterInterfaceEntry 4 } mgmdRouterInterfaceStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The activation of a row enables the router side of IGMP or MLD on the interface. The destruction of a row disables the router side of IGMP or MLD on the interface." ::= { mgmdRouterInterfaceEntry 5 } mgmdRouterInterfaceVersion OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "The version of MGMD which is running on this interface. Value 1 applies to IGMPv1 routers only. Value 2 applies To IGMPv2 and MLDv1 routers, and value 3 applies to IGMPv3 and MLDv2 routers. This object can be used to configure a router capable of running either version. For IGMP and MLD to function correctly, all routers on a LAN must be configured to run the same version on that LAN." DEFVAL { 3 } ::= { mgmdRouterInterfaceEntry 6 } mgmdRouterInterfaceQueryMaxResponseTime OBJECT-TYPE SYNTAX Unsigned32 (0..255) UNITS "tenths of seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The maximum query response time advertised in MGMDv2 or v3 queries on this interface." DEFVAL { 100 } ::= { mgmdRouterInterfaceEntry 7 } mgmdRouterInterfaceQuerierUpTime OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current Chesterfield Internet Draft - Expires November 2004 [Page 7] Multicast Group Membership Discovery MIB DESCRIPTION "The time since mgmdRouterInterfaceQuerier was last changed." ::= { mgmdRouterInterfaceEntry 8 } mgmdRouterInterfaceQuerierExpiryTime OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The amount of time remaining before the Other Querier Present Timer expires. If the local system is the querier, the value of this object is zero." ::= { mgmdRouterInterfaceEntry 9 } mgmdRouterInterfaceWrongVersionQueries OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of queries received whose IGMP or MLD version does not match the equivalent mgmdRouterInterfaceVersion, over the lifetime of the row entry. Both IGMP and MLD require that all routers on a LAN be configured to run the same version. Thus, if any queries are received with the wrong version, this indicates a configuration error." ::= { mgmdRouterInterfaceEntry 10 } mgmdRouterInterfaceJoins OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times a group membership has been added on this interface; that is, the number of times an entry for this interface has been added to the Cache Table. This object gives an indication of the amount of IGMP or MLD activity over the lifetime of the row entry." ::= { mgmdRouterInterfaceEntry 11 } mgmdRouterInterfaceProxyIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "Some devices implement a form of IGMP or MLD proxying whereby memberships learned on the interface represented by this row, cause Host Membership Reports to be sent on the interface whose ifIndex value is given by this object. Such a device would implement the mgmdV2RouterMIBGroup only on its router interfaces (those interfaces with non-zero mgmdRouterInterfaceProxyIfIndex). Typically, the value of this object is 0, indicating that no proxying is being done." DEFVAL { 0 } ::= { mgmdRouterInterfaceEntry 12 } mgmdRouterInterfaceGroups OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only Chesterfield Internet Draft - Expires November 2004 [Page 8] Multicast Group Membership Discovery MIB STATUS current DESCRIPTION "The current number of entries for this interface in the RouterCache Table." ::= { mgmdRouterInterfaceEntry 13 } mgmdRouterInterfaceRobustness OBJECT-TYPE SYNTAX Unsigned32 (1..255) MAX-ACCESS read-create STATUS current DESCRIPTION "The Robustness Variable allows tuning for the expected packet loss on a subnet. If a subnet is expected to be lossy, the Robustness Variable may be increased. IGMP and MLD is robust to (Robustness Variable-1) packet losses." DEFVAL { 2 } ::= { mgmdRouterInterfaceEntry 14 } mgmdRouterInterfaceLastMembQueryIntvl OBJECT-TYPE SYNTAX Unsigned32 (0..255) UNITS "tenths of seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The Last Member Query Interval is the Max Response Time inserted into Group-Specific Queries sent in response to Leave Group messages, and is also the amount of time Between Group-Specific Query messages. This value may be tuned to modify the leave latency of the network. A reduced value results in reduced time to detect the loss of the last member of a group. The value of this object is irrelevant if mgmdRouterInterfaceVersion is 1." DEFVAL { 10 } ::= { mgmdRouterInterfaceEntry 15 } -- -- The MGMD Host Cache Table -- mgmdHostCacheTable OBJECT-TYPE SYNTAX SEQUENCE OF MgmdHostCacheEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the IP multicast groups for which there are members on a particular interface." ::= { mgmdMIBObjects 5 } mgmdHostCacheEntry OBJECT-TYPE SYNTAX MgmdHostCacheEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the mgmdHostCacheTable." INDEX { mgmdHostCacheAddressType, mgmdHostCacheAddress, mgmdHostCacheIfIndex } ::= { mgmdHostCacheTable 1 } Chesterfield Internet Draft - Expires November 2004 [Page 9] Multicast Group Membership Discovery MIB MgmdHostCacheEntry ::= SEQUENCE { mgmdHostCacheAddressType InetAddressType, mgmdHostCacheAddress InetAddress, mgmdHostCacheIfIndex InterfaceIndex, mgmdHostCacheUpTime TimeTicks, mgmdHostCacheLastReporter InetAddress, mgmdHostCacheStatus RowStatus, mgmdHostCacheSourceFilterMode Integer32 } mgmdHostCacheAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "The address type of the mgmdHostCacheTable entry. This value applies to both the mgmdHostCacheAddress and the mgmdHostCacheLastReporter entries." ::= { mgmdHostCacheEntry 1 } mgmdHostCacheAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group address for which this entry contains information. The InetAddressType, e.g. IPv4 or IPv6, is identified by the mgmdHostCacheAddresType variable in the mgmdHostCache table." ::= { mgmdHostCacheEntry 2 } mgmdHostCacheIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The interface for which this entry contains information for an IP multicast group address." ::= { mgmdHostCacheEntry 3 } mgmdHostCacheUpTime OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time elapsed since this entry was created." ::= { mgmdHostCacheEntry 4 } mgmdHostCacheLastReporter OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The IP address of the source of the last membership report received for this IP Multicast group address on this Chesterfield Internet Draft - Expires November 2004 [Page 10] Multicast Group Membership Discovery MIB interface. If no membership report has been received, this object has the value 0::0. The InetAddressType, e.g. IPv4 or IPv6, is identified by the mgmdHostCacheAddresType variable in the mgmdHostCache table." ::= { mgmdHostCacheEntry 5 } mgmdHostCacheStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The status of this row. Enabling the entry makes the host an active member of the group. Disablng the entry forces the host to leave the group." ::= { mgmdHostCacheEntry 6 } mgmdHostCacheSourceFilterMode OBJECT-TYPE SYNTAX Integer32 {include (1), exclude (2) } MAX-ACCESS read-only STATUS current DESCRIPTION "The state in which the interface is currently set. The value indicates the relevance of the corresponding source list entries in the HostSrcList Table for MGMDv3 interfaces." ::= { mgmdHostCacheEntry 7 } -- -- The MGMD Router Cache Table -- mgmdRouterCacheTable OBJECT-TYPE SYNTAX SEQUENCE OF MgmdRouterCacheEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the IP multicast groups for which there are members on a particular router interface." ::= { mgmdMIBObjects 6 } mgmdRouterCacheEntry OBJECT-TYPE SYNTAX MgmdRouterCacheEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the mgmdRouterCacheTable." INDEX { mgmdRouterCacheAddressType, mgmdRouterCacheAddress, mgmdRouterCacheIfIndex } ::= { mgmdRouterCacheTable 1 } MgmdRouterCacheEntry ::= SEQUENCE { mgmdRouterCacheAddressType InetAddressType, mgmdRouterCacheAddress InetAddress, mgmdRouterCacheIfIndex InterfaceIndex, mgmdRouterCacheLastReporter InetAddress, mgmdRouterCacheUpTime TimeTicks, mgmdRouterCacheExpiryTime TimeTicks, Chesterfield Internet Draft - Expires November 2004 [Page 11] Multicast Group Membership Discovery MIB mgmdRouterCacheStatus RowStatus, mgmdRouterCacheVersion1HostTimer TimeTicks, mgmdRouterCacheVersion2HostTimer TimeTicks, mgmdRouterCacheSourceFilterMode Integer32 } mgmdRouterCacheAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "The address type of the mgmdRouterCacheTable entry. This value applies to both the mgmdRouterCacheAddress and the mgmdRouterCacheLastReporter entries." ::= { mgmdRouterCacheEntry 1 } mgmdRouterCacheAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group address for which this entry contains information. The InetAddressType, e.g. IPv4 or IPv6, is identified by the mgmdRouterCacheAddresType variable in the mgmdRouterCache table." ::= { mgmdRouterCacheEntry 2 } mgmdRouterCacheIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The interface for which this entry contains information for an IP multicast group address." ::= { mgmdRouterCacheEntry 3 } mgmdRouterCacheLastReporter OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The IP address of the source of the last membership report received for this IP Multicast group address on this interface. If no membership report has been received, this object has the value 0::0. The InetAddressType, e.g. IPv4 or IPv6, is identified by the mgmdRouterCacheAddresType variable in the mgmdRouterCache table." ::= { mgmdRouterCacheEntry 4 } mgmdRouterCacheUpTime OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time elapsed since this entry was created." ::= { mgmdRouterCacheEntry 5 } mgmdRouterCacheExpiryTime OBJECT-TYPE SYNTAX TimeTicks Chesterfield Internet Draft - Expires November 2004 [Page 12] Multicast Group Membership Discovery MIB MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum amount of time remaining before this entry will be aged out. The value must always be greater than 0." ::= { mgmdRouterCacheEntry 6 } mgmdRouterCacheStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The status of this row. Enabling the entry makes this router an active member of the group on the interface defined by mgmdRouterCacheIfIndex. Disabling the entry forces the router interface to leave the group." ::= { mgmdRouterCacheEntry 7 } mgmdRouterCacheVersion1HostTimer OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time remaining until the local router will assume that there are no longer any MGMD version 1 members on the IP subnet attached to this interface. This entry only applies to IGMPv1 hosts, and is not implemented for MLD. Upon hearing any MGMDv1 Membership Report (IGMPv1 only), this value is reset to the group membership timer. While this time remaining is non-zero, the local router ignores any MGMDv2 Leave messages (IGMPv2 only) for this group that it receives on this interface." ::= { mgmdRouterCacheEntry 8 } mgmdRouterCacheVersion2HostTimer OBJECT-TYPE SYNTAX TimeTicks MAX-ACCESS read-only STATUS current DESCRIPTION "The time remaining until the local router will assume that there are no longer any MGMD version 2 members on the IP subnet attached to this interface. This entry applies to both IGMP and MLD hosts. Upon hearing any MGMDv2 Membership Report, this value is reset to the group membership timer. Assuming no MGMDv1 hosts have been detected, the local router does not ignore any MGMDv2 Leave messages for this group that it receives on this interface." ::= { mgmdRouterCacheEntry 9 } mgmdRouterCacheSourceFilterMode OBJECT-TYPE SYNTAX Integer32 {include (1), exclude (2) } MAX-ACCESS read-only STATUS current DESCRIPTION "The state in which the interface is currently set. The value indicates the relevance of the corresponding source list entries in the RouterSrcList Table for MGMDv3 interfaces." Chesterfield Internet Draft - Expires November 2004 [Page 13] Multicast Group Membership Discovery MIB ::= { mgmdRouterCacheEntry 10 } -- -- The MGMD Reverse Host interface/cache lookup Table -- mgmdInverseHostCacheTable OBJECT-TYPE SYNTAX SEQUENCE OF MgmdInverseHostCacheEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the interfaces which are members of a particular group. This is a reverse lookup table for entries in the mgmdHostCacheTable." ::= { mgmdMIBObjects 7 } mgmdInverseHostCacheEntry OBJECT-TYPE SYNTAX MgmdInverseHostCacheEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the mgmdInverseHostCacheTable." INDEX { mgmdInverseHostCacheIfIndex, mgmdInverseHostCacheAddressType, mgmdInverseHostCacheAddress, } ::= { mgmdInverseHostCacheTable 1 } MgmdInverseHostCacheEntry ::= SEQUENCE { mgmdInverseHostCacheIfIndex InterfaceIndex, mgmdInverseHostCacheAddressType InetAddressType, mgmdInverseHostCacheAddress InetAddress } mgmdInverseHostCacheIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The interface for which this entry contains information." ::= { mgmdInverseHostCacheEntry 1 } mgmdInverseHostCacheAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address type of the mgmdInverseHostCacheTable entry." ::= { mgmdInverseHostCacheEntry 2 } mgmdInverseHostCacheAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group address for which this entry contains information about an interface. The InetAddressType, e.g. Chesterfield Internet Draft - Expires November 2004 [Page 14] Multicast Group Membership Discovery MIB IPv4 or IPv6, is identified by the mgmdInverseHostCacheAddresType variable in the mgmdInverseHostCache table." ::= { mgmdInverseHostCacheEntry 3 } -- -- The MGMD Reverse Router interface/cache lookup Table -- mgmdInverseRouterCacheTable OBJECT-TYPE SYNTAX SEQUENCE OF MgmdInverseRouterCacheEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the interfaces which are members of a particular group. This is a reverse lookup table for entries in the mgmdRouterCacheTable." ::= { mgmdMIBObjects 8 } mgmdInverseRouterCacheEntry OBJECT-TYPE SYNTAX MgmdInverseRouterCacheEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the mgmdInverseRouterCacheTable." INDEX { mgmdInverseRouterCacheIfIndex, mgmdInverseRouterCacheAddressType, mgmdInverseRouterCacheAddress} ::= { mgmdInverseRouterCacheTable 1 } MgmdInverseRouterCacheEntry ::= SEQUENCE { mgmdInverseRouterCacheIfIndex InterfaceIndex, mgmdInverseRouterCacheAddressType InetAddressType, mgmdInverseRouterCacheAddress InetAddress } mgmdInverseRouterCacheIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The interface for which this entry contains information." ::= { mgmdInverseRouterCacheEntry 1 } mgmdInverseRouterCacheAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address type of the mgmdInverseRouterCacheTable entry." ::= { mgmdInverseRouterCacheEntry 2 } mgmdInverseRouterCacheAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group address for which this entry Chesterfield Internet Draft - Expires November 2004 [Page 15] Multicast Group Membership Discovery MIB contains information about an interface. The InetAddressType, e.g. IPv4 or IPv6, is identified by the mgmdInverseRouterCacheAddresType variable in the mgmdInverseRouterCache table." ::= { mgmdInverseRouterCacheEntry 3 } -- -- The MGMD Host Source list Table -- mgmdHostSrcListTable OBJECT-TYPE SYNTAX SEQUENCE OF MgmdHostSrcListEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the Source List entries corresponding to each Interface filter mode record on a host." ::= { mgmdMIBObjects 9 } mgmdHostSrcListEntry OBJECT-TYPE SYNTAX MgmdHostSrcListEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the mgmdHostSrcListTable." INDEX { mgmdHostSrcListAddressType, mgmdHostSrcListAddress, mgmdHostSrcListIfIndex, mgmdHostSrcListHostAddress } ::= { mgmdHostSrcListTable 1 } MgmdHostSrcListEntry ::= SEQUENCE { mgmdHostSrcListAddressType InetAddressType, mgmdHostSrcListAddress InetAddress, mgmdHostSrcListIfIndex InterfaceIndex, mgmdHostSrcListHostAddress InetAddress } mgmdHostSrcListAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address type of the InetAddress variables in this table. This value applies to the mgmdHostSrcListHostAddress and mgmdHostSrcListAddress entries." ::= { mgmdHostSrcListEntry 1 } mgmdHostSrcListAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group address for which this entry contains information." ::= { mgmdHostSrcListEntry 2 } mgmdHostSrcListIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible Chesterfield Internet Draft - Expires November 2004 [Page 16] Multicast Group Membership Discovery MIB STATUS current DESCRIPTION "The interface for which this entry contains information for an IP multicast group address." ::= { mgmdHostSrcListEntry 3 } mgmdHostSrcListHostAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The host address to which this entry corresponds. The mgmdHostCacheSourceFilterMode value for this Group address and interface indicates whether this Host address is included or excluded." ::= { mgmdHostSrcListEntry 4 } -- -- The MGMD Router Source list Table -- mgmdRouterSrcListTable OBJECT-TYPE SYNTAX SEQUENCE OF MgmdRouterSrcListEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The (conceptual) table listing the Source List entries corresponding to each Interface filter mode record on a Router." ::= { mgmdMIBObjects 10 } mgmdRouterSrcListEntry OBJECT-TYPE SYNTAX MgmdRouterSrcListEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry (conceptual row) in the mgmdRouterSrcListTable." INDEX { mgmdRouterSrcListAddressType, mgmdRouterSrcListAddress, mgmdRouterSrcListIfIndex, mgmdRouterSrcListHostAddress } ::= { mgmdRouterSrcListTable 1 } MgmdRouterSrcListEntry ::= SEQUENCE { mgmdRouterSrcListAddressType InetAddressType, mgmdRouterSrcListAddress InetAddress, mgmdRouterSrcListIfIndex InterfaceIndex, mgmdRouterSrcListHostAddress InetAddress } mgmdRouterSrcListAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address type of the InetAddress variables in this table. This value applies to the mgmdRouterSrcListHostAddress and mgmdRouterSrcListAddress entries." ::= { mgmdRouterSrcListEntry 1 } mgmdRouterSrcListAddress OBJECT-TYPE Chesterfield Internet Draft - Expires November 2004 [Page 17] Multicast Group Membership Discovery MIB SYNTAX InetAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP multicast group address for which this entry contains information." ::= { mgmdRouterSrcListEntry 2 } mgmdRouterSrcListIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The interface for which this entry contains information for an IP multicast group address." ::= { mgmdRouterSrcListEntry 3 } mgmdRouterSrcListHostAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The host address to which this entry corresponds. The mgmdRouterCacheSourceFilterMode value for this Group address and interface indicates whether this Host address is included or excluded." ::= { mgmdRouterSrcListEntry 4 } -- conformance information mgmdMIBConformance OBJECT IDENTIFIER ::= { mgmdStdMIB 2 } mgmdMIBVersions OBJECT IDENTIFIER ::= { mgmdMIBConformance 3 } mgmdMIBCompliances OBJECT IDENTIFIER ::= { mgmdMIBConformance 4 } mgmdMIBGroups OBJECT IDENTIFIER ::= { mgmdMIBConformance 5 } -- Protocol Version Conformance mgmdIgmpV1HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running IGMPv1, RFC 1112 [5], and implementing the MGMD MIB. MGMDv1 applies to hosts and routers running IGMPv1 only. IGMPv1 hosts must support the IPv4 address type." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup } ::= { mgmdMIBVersions 1 } mgmdIgmpV1RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for routers running IGMPv1, RFC 1112 [5], and implementing the MGMD MIB. MGMDv1 applies to hosts and routers Chesterfield Internet Draft - Expires November 2004 [Page 18] Multicast Group Membership Discovery MIB running IGMPv1 only. IGMPv1 routers must support the IPv4 address type " MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup } ::= { mgmdMIBVersions 2 } mgmdIgmpV2HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running IGMPv2, RFC 2236 [6], and implementing the MGMD MIB. MGMDv2 applies to hosts and routers running IGMPv2 or MLDv1. IGMPv2 hosts must support the IPv4 address type" MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup , mgmdV2IgmpHostMIBGroup } ::= { mgmdMIBVersions 3 } mgmdIgmpV2RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for routers running IGMPv2, RFC 2236 [6], and implementing the MGMD MIB. MGMDv2 applies to hosts and routers running IGMPv2 or MLDv1. IGMPv2 routers must support the IPv4 address type " MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2IgmpRouterMIBGroup } ::= { mgmdMIBVersions 4 } mgmdMldV1HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running MLDv1, RFC 2710 [8], and implementing the MGMD MIB. MGMDv2 applies to hosts and routers running IGMPv2 or MLDv1. MLDv1 hosts must support the IPv6 address type." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup } ::= { mgmdMIBVersions 5 } mgmdMldV1RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for routers running MLDv1, RFC 2710 [8], and implementing the MGMD MIB. MGMDv2 applies to hosts and routers running IGMPv2 or MLDv1. MLDv1 routers must support the IPv6 address type." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup } ::= { mgmdMIBVersions 6 } Chesterfield Internet Draft - Expires November 2004 [Page 19] Multicast Group Membership Discovery MIB mgmdIgmpV3HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running IGMPv3, RFC 3376 [7], and implementing the MGMD MIB. MGMDv3 applies to hosts and routers running IGMPv3 or MLDv2. IGMPv3 hosts must support the IPv4 address type." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup, mgmdV2IgmpHostMIBGroup, mgmdV3HostMIBGroup } ::= { mgmdMIBVersions 7 } mgmdIgmpV3RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for routers running IGMPv3, RFC 3376 [7], and implementing the MGMD MIB. MGMDv3 applies to hosts and routers running IGMPv3 or MLDv2. IGMPv3 routers must support the IPv4 address type." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup, mgmdV2IgmpRouterMIBGroup, mgmdV3RouterMIBGroup } ::= { mgmdMIBVersions 8 } mgmdMldV2HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for hosts running MLDv2 [9] and implementing the MGMD MIB. MGMDv3 applies to hosts and routers running IGMPv3 or MLDv2. MLDv2 hosts must support the IPv6 address type." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup, mgmdV3HostMIBGroup } ::= { mgmdMIBVersions 9 } mgmdMldV2RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The version statement for routers running MLDv2 [9] and implementing the MGMD MIB. MGMDv3 applies to hosts and routers running IGMPv3 or MLDv2. MLDv2 routers must support the IPv6 address type." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup, mgmdV3RouterMIBGroup } Chesterfield Internet Draft - Expires November 2004 [Page 20] Multicast Group Membership Discovery MIB ::= { mgmdMIBVersions 10 } -- compliance statements mgmdV1HostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for hosts running MGMDv1 and implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup } OBJECT mgmdHostInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mgmdHostCacheStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliances 1 } mgmdV1RouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for routers running MGMDv1 and implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mgmdRouterCacheStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliances 2 } mgmdV2IgmpHostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for IGMPv2 hosts implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup, mgmdV2IgmpHostMIBGroup } OBJECT mgmdHostCacheStatus MIN-ACCESS read-only DESCRIPTION Chesterfield Internet Draft - Expires November 2004 [Page 21] Multicast Group Membership Discovery MIB "Write access is not required." ::= { mgmdMIBCompliances 3 } mgmdV2MldHostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for MLDv1 hosts implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup } OBJECT mgmdHostCacheStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliances 4 } mgmdV2IgmpRouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for IGMPv2 routers implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup, mgmdV2IgmpRouterMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mgmdRouterCacheStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliances 5 } mgmdV2MldRouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for MLDv1 routers implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mgmdRouterCacheStatus MIN-ACCESS read-only Chesterfield Internet Draft - Expires November 2004 [Page 22] Multicast Group Membership Discovery MIB DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliances 6 } mgmdV3IgmpHostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for hosts running MGMDv3 and implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup, mgmdV2IgmpHostMIBGroup, mgmdV3HostMIBGroup } OBJECT mgmdHostInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mgmdHostCacheStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliances 7 } mgmdV3IgmpRouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for routers running MGMDv3 and implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup, mgmdV2IgmpRouterMIBGroup, mgmdV3RouterMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mgmdRouterCacheStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliances 8 } mgmdV3MldHostMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for hosts running MGMDv3 and implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdHostBaseMIBGroup, Chesterfield Internet Draft - Expires November 2004 [Page 23] Multicast Group Membership Discovery MIB mgmdV3HostMIBGroup } OBJECT mgmdHostInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mgmdHostCacheStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliances 9 } mgmdV3MldRouterMIBCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for routers running MGMDv3 and implementing the MGMD MIB." MODULE -- this module MANDATORY-GROUPS { mgmdRouterBaseMIBGroup, mgmdV2RouterBaseMIBGroup, mgmdV3RouterMIBGroup } OBJECT mgmdRouterInterfaceStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mgmdRouterCacheStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mgmdMIBCompliances 10 } -- units of conformance mgmdHostBaseMIBGroup OBJECT-GROUP OBJECTS { mgmdHostCacheStatus, mgmdHostInterfaceStatus, mgmdHostCacheAddressType } STATUS current DESCRIPTION "The basic collection of objects providing management of MGMD version 1, 2 or 3 for Hosts." ::= { mgmdMIBGroups 1 } mgmdRouterBaseMIBGroup OBJECT-GROUP OBJECTS { mgmdRouterCacheStatus, mgmdRouterInterfaceStatus, mgmdRouterCacheAddressType, mgmdRouterCacheUpTime, mgmdRouterCacheExpiryTime, mgmdRouterInterfaceJoins, mgmdRouterInterfaceGroups, mgmdRouterCacheLastReporter, mgmdRouterInterfaceQuerierUpTime, mgmdRouterInterfaceQuerierExpiryTime, mgmdRouterInterfaceQueryInterval } Chesterfield Internet Draft - Expires November 2004 [Page 24] Multicast Group Membership Discovery MIB STATUS current DESCRIPTION "The basic collection of objects providing management of MGMD version 1, 2 or 3 for Routers." ::= { mgmdMIBGroups 2 } mgmdV2IgmpHostMIBGroup OBJECT-GROUP OBJECTS { mgmdHostInterfaceVersion1QuerierTimer } STATUS current DESCRIPTION "A collection of additional objects for management of IGMP version 2 in hosts for MGMD version 2 compliance." ::= { mgmdMIBGroups 3 } mgmdHostOptMIBGroup OBJECT-GROUP OBJECTS { mgmdHostCacheLastReporter, mgmdHostCacheUpTime, mgmdHostInterfaceQuerier } STATUS current DESCRIPTION "A collection of optional objects for MGMD hosts. Supporting this group can be especially useful in an environment with a router which does not support the MGMD MIB." ::= { mgmdMIBGroups 4 } mgmdV2RouterBaseMIBGroup OBJECT-GROUP OBJECTS { mgmdRouterInterfaceVersion, mgmdRouterInterfaceQuerier, mgmdRouterInterfaceQueryMaxResponseTime, mgmdRouterInterfaceRobustness, mgmdRouterInterfaceWrongVersionQueries, mgmdRouterInterfaceLastMembQueryIntvl } STATUS current DESCRIPTION "A collection of additional objects for management of MGMD version 2 in routers." ::= { mgmdMIBGroups 5 } mgmdV2IgmpRouterMIBGroup OBJECT-GROUP OBJECTS { mgmdRouterCacheVersion1HostTimer } STATUS current DESCRIPTION "A collection of further objects required by IGMPv2 routers for MGMD version 2 compliance. " ::= { mgmdMIBGroups 6 } mgmdV2ProxyMIBGroup OBJECT-GROUP OBJECTS { mgmdRouterInterfaceProxyIfIndex } STATUS current DESCRIPTION "A collection of additional objects for management of MGMD proxy devices." ::= { mgmdMIBGroups 7 } mgmdV3HostMIBGroup OBJECT-GROUP OBJECTS { mgmdHostInterfaceVersion2QuerierTimer, mgmdHostCacheSourceFilterMode, mgmdHostSrcListAddress, mgmdHostSrcListIfIndex, Chesterfield Internet Draft - Expires November 2004 [Page 25] Multicast Group Membership Discovery MIB mgmdHostSrcListAddressType, mgmdHostSrcListHostAddress } STATUS current DESCRIPTION "A collection of additional objects for management of MGMD version 3 in hosts." ::= { mgmdMIBGroups 8 } mgmdV3RouterMIBGroup OBJECT-GROUP OBJECTS { mgmdRouterCacheSourceFilterMode, mgmdRouterCacheVersion2HostTimer, mgmdRouterSrcListAddress, mgmdRouterSrcListIfIndex, mgmdRouterSrcListAddressType, mgmdRouterSrcListHostAddress } STATUS current DESCRIPTION "A collection of additional objects for management of MGMD version 3 in routers." ::= { mgmdMIBGroups 9 } END 5. Security Considerations This MIB contains readable objects whose values provide information related to multicast sessions. Some of these objects could contain sensitive information. In particular, the mgmdCacheLastReporter object can be used to identify machines which are listening to a given group address. There are also a number of objects that have a MAX-ACCESS clause of read-write and/or read- create, which allow an administrator to configure the MGMD in the router. While unauthorized access to the readable objects is relatively innocuous, unauthorized access to the write-able objects could cause a denial of service. 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), 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. 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 [12] and the View-based Access Control Model RFC 2575 [15] 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. Contributors Chesterfield Internet Draft - Expires November 2004 [Page 26] Multicast Group Membership Discovery MIB The authors of RFC 2933 and RFC 3019 from which this document is derived are: Keith McCloghrie cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 Phone: 408 526 5260 EMail: kzm@cisco.com Dino Farinacci Procket Networks 3850 North First Street San Jose, CA 95134 Phone: 408-954-7909 Email: dino@procket.com Dave Thaler Microsoft Corporation One Microsoft Way Redmond, WA 48105-6399 Phone: 425 703 8835 EMail: dthaler@microsoft.com Brian Haberman Nortel Networks 4309 Emperor Blvd. Suite 200 Durham, NC 27703 USA Phone: 919-992-4439 EMail: haberman@nortelnetworks.com Randy Worzella IBM Corporation 800 Park Office Drive Research Triangle Park, NC 27709 USA Phone: 919-254-2202 EMail: worzella@us.ibm.com 7. Acknowledgements Thanks to Bill Fenner, Brian Haberman and Dave Thaler for feedback and suggestions regarding the MIB. 8. Author's Address Chesterfield Internet Draft - Expires November 2004 [Page 27] Multicast Group Membership Discovery MIB Julian Chesterfield University of Cambridge, Computer Laboratory, 15 JJ Thompson Avenue, Cambridge, CB3 0FD UK 9. References [1] 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. [2] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999. [3] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999. [4] Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction and Applicability Statements for Internet- Standard Management Framework", RFC 3410, December 2002. [5] Deering, S., "Host Extensions for IP Multicasting", STD 5, RFC 1112, August 1989. [6] Fenner, W., "Internet Group Management Protocol, Version 2", RFC 2236, November 1997. [7] Cain, B., Deering, S., Fenner, W., Kouvelas, I., Thyagarajan, A., "Internet Group Management Protocol, Version 3", RFC 3376, Oct 2002. [8] Deering, S., Fenner, W., Haberman, B., "Multicast Listener Discovery for IPv6", RFC 2710", October 1999. [9] Vida, R., Costa, L., "Multicast Listener Discovery Version 2 (MLDv2) for IPv6", . [10] McCloghrie, K., Farinacci, D., Thaler, D., "Internet Group Management Protocol MIB", RFC 2933, October 2000. [11] Haberman, B., Worzella, R., "IP Version 6 Management Information Base for The Multicast Listener Discovery Protocol, RFC 3019", January 2001. 10. Full Copyright Statement Copyright (C) The Internet Society (2000). 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 Chesterfield Internet Draft - Expires November 2004 [Page 28] Multicast Group Membership Discovery MIB 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 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." Chesterfield Internet Draft - Expires November 2004 [Page 29]