IPV6-MIB

Ipv6IfIndexA unique value, greater than zero for each internetwork-layer interface in the managed system. It is recommended that values are assigned contiguously starting from 1. The value for each internetwork-layer interface must remain constant at least from one re-initialization of the entity's network management system to the next re-initialization. (1..2147483647) · Integer32 · hint d

A unique non-zero value identifying the particular IPv6 interface.

DisplayStringRepresents textual information taken from the NVT ASCII character set, as defined in pages 4, 10-11 of RFC 854. To summarize RFC 854, the NVT ASCII repertoire specifies: - the use of character codes 0-127 (decimal) - the graphics characters (32-126) are interpreted as US ASCII - NUL, LF, CR, BEL, BS, HT, VT and FF have the special meanings specified in RFC 854 - the other 25 codes have no standard interpretation - the sequence 'CR LF' means newline - the sequence 'CR NUL' means carriage-return - an 'LF' not preceded by a 'CR' means moving to the same column on the next line. - the sequence 'CR x' for any x other than LF or NUL is illegal. (Note that this also means that a string may end with either 'CR LF' or 'CR NUL', but not with CR.) Any object defined using this syntax may not exceed 255 characters in length. SIZE (0..255) · OCTET STRING · hint 255a

A textual string containing information about the interface. This string may be set by the network management system.

VariablePointerA pointer to a specific object instance. For example, sysContact.0 or ifInOctets.3. · OBJECT IDENTIFIER

This object identifies the protocol layer over which this network interface operates. If this network interface operates over the data-link layer, then the value of this object refers to an instance of ifIndex [6]. If this network interface operates over an IPv4 interface, the value of this object refers to an instance of ipAdEntAddr [3]. If this network interface operates over another IPv6 interface, the value of this object refers to an instance of ipv6IfIndex. If this network interface is not currently operating over an active protocol layer, then the value of this object should be set to the OBJECT ID { 0 0 }.

Unsigned32 · octets

The size of the largest IPv6 packet which can be sent/received on the interface, specified in octets.

Unsigned32 (0..65535) · octets

The size of the largest IPv6 datagram which this entity can re-assemble from incoming IPv6 fragmented datagrams received on this interface.

Ipv6AddressIfIdentifierThis data type is used to model IPv6 address interface identifiers. This is a binary string of up to 8 octets in network byte-order. SIZE (0..8) · OCTET STRING · hint 2x:

The Interface Identifier for this interface that is (at least) unique on the link this interface is attached to. The Interface Identifier is combined with an address prefix to form an interface address. By default, the Interface Identifier is autoconfigured according to the rules of the link type this interface is attached to.

INTEGER (0..64) · Integer32 · bits

The length of the Interface Identifier in bits.

PhysAddressRepresents media- or physical-level addresses. · OCTET STRING · hint 1x:

The interface's physical address. For example, for an IPv6 interface attached to an 802.x link, this object normally contains a MAC address. Note that in some cases this address may differ from the address of the interface's protocol sub-layer. The interface's media-specific MIB must define the bit and byte ordering and the format of the value of this object. For interfaces which do not have such an address (e.g., a serial line), this object should contain an octet string of zero length.

INTEGER1 = up2 = down · Integer32

The desired state of the interface. When a managed system initializes, all IPv6 interfaces start with ipv6IfAdminStatus in the down(2) state. As a result of either explicit management action or per configuration information retained by the managed system, ipv6IfAdminStatus is then changed to the up(1) state (or remains in the down(2) state).

INTEGER1 = up2 = down3 = noIfIdentifier4 = unknown5 = notPresent · Integer32

The current operational state of the interface. The noIfIdentifier(3) state indicates that no valid Interface Identifier is assigned to the interface. This state usually indicates that the link-local interface address failed Duplicate Address Detection. If ipv6IfAdminStatus is down(2) then ipv6IfOperStatus should be down(2). If ipv6IfAdminStatus is changed to up(1) then ipv6IfOperStatus should change to up(1) if the interface is ready to transmit and receive network traffic; it should remain in the down(2) or noIfIdentifier(3) state if and only if there is a fault that prevents it from going to the up(1) state; it should remain in the notPresent(5) state if the interface has missing (typically, lower layer) components.

TimeStampThe value of the sysUpTime object at which a specific occurrence happened. The specific occurrence must be defined in the description of any object defined using this type. If sysUpTime is reset to zero as a result of a re- initialization of the network management (sub)system, then the values of all TimeStamp objects are also reset. However, after approximately 497 days without a re- initialization, the sysUpTime object will reach 2^^32-1 and then increment around to zero; in this case, existing values of TimeStamp objects do not change. This can lead to ambiguities in the value of TimeStamp objects. · TimeTicks

The value of sysUpTime at the time the interface entered its current operational state. If the current state was entered prior to the last re-initialization of the local network management subsystem, then this object contains a zero value.

Counter32

The total number of input datagrams received by the interface, including those received in error.

Counter32

The number of input datagrams discarded due to errors in their IPv6 headers, including version number mismatch, other format errors, hop count exceeded, errors discovered in processing their IPv6 options, etc.

Counter32

The number of input datagrams that could not be forwarded because their size exceeded the link MTU of outgoing interface.

Counter32

The number of input datagrams discarded because no route could be found to transmit them to their destination.

Counter32

The number of input datagrams discarded because the IPv6 address in their IPv6 header's destination field was not a valid address to be received at this entity. This count includes invalid addresses (e.g., ::0) and unsupported addresses (e.g., addresses with unallocated prefixes). For entities which are not IPv6 routers and therefore do not forward datagrams, this counter includes datagrams discarded because the destination address was not a local address.

Counter32

The number of locally-addressed datagrams received successfully but discarded because of an unknown or unsupported protocol. This counter is incremented at the interface to which these datagrams were addressed which might not be necessarily the input interface for some of the datagrams.

Counter32

The number of input datagrams discarded because datagram frame didn't carry enough data.

Counter32

The number of input IPv6 datagrams for which no problems were encountered to prevent their continued processing, but which were discarded (e.g., for lack of buffer space). Note that this counter does not include any datagrams discarded while awaiting re-assembly.

Counter32

The total number of datagrams successfully delivered to IPv6 user-protocols (including ICMP). This counter is incremented at the interface to which these datagrams were addressed which might not be necessarily the input interface for some of the datagrams.

Counter32

The number of output datagrams which this entity received and forwarded to their final destinations. In entities which do not act as IPv6 routers, this counter will include only those packets which were Source-Routed via this entity, and the Source-Route processing was successful. Note that for a successfully forwarded datagram the counter of the outgoing interface is incremented.

Counter32

The total number of IPv6 datagrams which local IPv6 user-protocols (including ICMP) supplied to IPv6 in requests for transmission. Note that this counter does not include any datagrams counted in ipv6IfStatsOutForwDatagrams.

Counter32

The number of output IPv6 datagrams for which no problem was encountered to prevent their transmission to their destination, but which were discarded (e.g., for lack of buffer space). Note that this counter would include datagrams counted in ipv6IfStatsOutForwDatagrams if any such packets met this (discretionary) discard criterion.

Counter32

The number of IPv6 datagrams that have been successfully fragmented at this output interface.

Counter32

The number of IPv6 datagrams that have been discarded because they needed to be fragmented at this output interface but could not be.

Counter32

The number of output datagram fragments that have been generated as a result of fragmentation at this output interface.

Counter32

The number of IPv6 fragments received which needed to be reassembled at this interface. Note that this counter is incremented at the interface to which these fragments were addressed which might not be necessarily the input interface for some of the fragments.

Counter32

The number of IPv6 datagrams successfully reassembled. Note that this counter is incremented at the interface to which these datagrams were addressed which might not be necessarily the input interface for some of the fragments.

Counter32

The number of failures detected by the IPv6 re- assembly algorithm (for whatever reason: timed out, errors, etc.). Note that this is not necessarily a count of discarded IPv6 fragments since some algorithms (notably the algorithm in RFC 815) can lose track of the number of fragments by combining them as they are received. This counter is incremented at the interface to which these fragments were addressed which might not be necessarily the input interface for some of the fragments.

Counter32

The number of multicast packets received by the interface

Counter32

The number of multicast packets transmitted by the interface

Ipv6AddressPrefixThis data type is used to model IPv6 address prefixes. This is a binary string of up to 16 octets in network byte-order. SIZE (0..16) · OCTET STRING · hint 2x:

The prefix associated with the this interface.

INTEGER (0..128) · Integer32 · bits

The length of the prefix (in bits).

TruthValue1 = true2 = falseRepresents a boolean value. · Integer32

This object has the value 'true(1)', if this prefix can be used for on-link determination and the value 'false(2)' otherwise.

TruthValue1 = true2 = falseRepresents a boolean value. · Integer32

Autonomous address configuration flag. When true(1), indicates that this prefix can be used for autonomous address configuration (i.e. can be used to form a local interface address). If false(2), it is not used to autoconfigure a local interface address.

Unsigned32 · seconds

It is the length of time in seconds that this prefix will remain preferred, i.e. time until deprecation. A value of 4,294,967,295 represents infinity. The address generated from a deprecated prefix should no longer be used as a source address in new communications, but packets received on such an interface are processed as expected.

Unsigned32 · seconds

It is the length of time in seconds that this prefix will remain valid, i.e. time until invalidation. A value of 4,294,967,295 represents infinity. The address generated from an invalidated prefix should not appear as the destination or source address of a packet.

Ipv6AddressThis data type is used to model IPv6 addresses. This is a binary string of 16 octets in network byte-order. SIZE (16) · OCTET STRING · hint 2x:

The IPv6 address to which this entry's addressing information pertains.

INTEGER (0..128) · Integer32 · bits

The length of the prefix (in bits) associated with the IPv6 address of this entry.

INTEGER1 = stateless2 = stateful3 = unknown · Integer32

The type of address. Note that 'stateless(1)' refers to an address that was statelessly autoconfigured; 'stateful(2)' refers to a address which was acquired by via a stateful protocol (e.g. DHCPv6, manual configuration).

TruthValue1 = true2 = falseRepresents a boolean value. · Integer32

This object has the value 'true(1)', if this address is an anycast address and the value 'false(2)' otherwise.

INTEGER1 = preferred2 = deprecated3 = invalid4 = inaccessible5 = unknown · Integer32

Address status. The preferred(1) state indicates that this is a valid address that can appear as the destination or source address of a packet. The deprecated(2) state indicates that this is a valid but deprecated address that should no longer be used as a source address in new communications, but packets addressed to such an address are processed as expected. The invalid(3) state indicates that this is not valid address which should not appear as the destination or source address of a packet. The inaccessible(4) state indicates that the address is not accessible because the interface to which this address is assigned is not operational.

Ipv6AddressThis data type is used to model IPv6 addresses. This is a binary string of 16 octets in network byte-order. SIZE (16) · OCTET STRING · hint 2x:

The destination IPv6 address of this route. This object may not take a Multicast address value.

INTEGER (0..128) · Integer32 · bits

Indicates the prefix length of the destination address.

Unsigned32

The value which uniquely identifies the route among the routes to the same network layer destination. The way this value is chosen is implementation specific but it must be unique for ipv6RouteDest/ipv6RoutePfxLength pair and remain constant for the life of the route.

Ipv6IfIndexOrZeroThis textual convention is an extension of the Ipv6IfIndex convention. The latter defines a greater than zero value used to identify an IPv6 interface in the managed system. This extension permits the additional value of zero. The value zero is object-specific and must therefore be defined as part of the description of any object which uses this syntax. Examples of the usage of zero might include situations where interface was unknown, or when none or all interfaces need to be referenced. (0..2147483647) · Integer32 · hint d

The index value which uniquely identifies the local interface through which the next hop of this route should be reached. The interface identified by a particular value of this index is the same interface as identified by the same value of ipv6IfIndex. For routes of the discard type this value can be zero.

Ipv6AddressThis data type is used to model IPv6 addresses. This is a binary string of 16 octets in network byte-order. SIZE (16) · OCTET STRING · hint 2x:

On remote routes, the address of the next system en route; otherwise, ::0 ('00000000000000000000000000000000'H in ASN.1 string representation).

INTEGER1 = other2 = discard3 = local4 = remote · Integer32

The type of route. Note that 'local(3)' refers to a route for which the next hop is the final destination; 'remote(4)' refers to a route for which the next hop is not the final destination; 'discard(2)' refers to a route indicating that packets to destinations matching this route are to be discarded (sometimes called black-hole route).

INTEGER1 = other2 = local3 = netmgmt4 = ndisc5 = rip6 = ospf7 = bgp8 = idrp9 = igrp · Integer32

The routing mechanism via which this route was learned.

Integer32

The general set of conditions that would cause the selection of one multipath route (set of next hops for a given destination) is referred to as 'policy'. Unless the mechanism indicated by ipv6RouteProtocol specified otherwise, the policy specifier is the 8-bit Traffic Class field of the IPv6 packet header that is zero extended at the left to a 32-bit value. Protocols defining 'policy' otherwise must either define a set of values which are valid for this object or must implement an integer- instanced policy table for which this object's value acts as an index.

Unsigned32 · seconds

The number of seconds since this route was last updated or otherwise determined to be correct. Note that no semantics of `too old' can be implied except through knowledge of the routing protocol by which the route was learned.

Unsigned32

The Routing Domain ID of the Next Hop. The semantics of this object are determined by the routing-protocol specified in the route's ipv6RouteProtocol value. When this object is unknown or not relevant its value should be set to zero.

Unsigned32

The routing metric for this route. The semantics of this metric are determined by the routing protocol specified in the route's ipv6RouteProtocol value. When this is unknown or not relevant to the protocol indicated by ipv6RouteProtocol, the object value should be set to its maximum value (4,294,967,295).

Unsigned32

The system internal weight value for this route. The semantics of this value are determined by the implementation specific rules. Generally, within routes with the same ipv6RoutePolicy value, the lower the weight value the more preferred is the route.

RowPointerRepresents a pointer to a conceptual row. The value is the name of the instance of the first accessible columnar object in the conceptual row. For example, ifIndex.3 would point to the 3rd row in the ifTable (note that if ifIndex were not-accessible, then ifDescr.3 would be used instead). · OBJECT IDENTIFIER

A reference to MIB definitions specific to the particular routing protocol which is responsible for this route, as determined by the value specified in the route's ipv6RouteProto value. If this information is not present, its value should be set to the OBJECT ID { 0 0 }, which is a syntactically valid object identifier, and any implementation conforming to ASN.1 and the Basic Encoding Rules must be able to generate and recognize this value.

TruthValue1 = true2 = falseRepresents a boolean value. · Integer32

Setting this object to the value 'false(2)' has the effect of invalidating the corresponding entry in the ipv6RouteTable object. That is, it effectively disassociates the destination identified with said entry from the route identified with said entry. It is an implementation-specific matter as to whether the agent removes an invalidated entry from the table. Accordingly, management stations must be prepared to receive tabular information from agents that corresponds to entries not currently in use. Proper interpretation of such entries requires examination of the relevant ipv6RouteValid object.

Ipv6AddressThis data type is used to model IPv6 addresses. This is a binary string of 16 octets in network byte-order. SIZE (16) · OCTET STRING · hint 2x:

The IPv6 Address corresponding to the media-dependent `physical' address.

PhysAddressRepresents media- or physical-level addresses. · OCTET STRING · hint 1x:

The media-dependent `physical' address.

INTEGER1 = other2 = dynamic3 = static4 = local · Integer32

The type of the mapping. The 'dynamic(2)' type indicates that the IPv6 address to physical addresses mapping has been dynamically resolved using the IPv6 Neighbor Discovery protocol. The static(3)' types indicates that the mapping has been statically configured. The local(4) indicates that the mapping is provided for an entity's own interface address.

INTEGER1 = reachable2 = stale3 = delay4 = probe5 = invalid6 = unknown · Integer32

The Neighbor Unreachability Detection [8] state for the interface when the address mapping in this entry is used.

TimeStampThe value of the sysUpTime object at which a specific occurrence happened. The specific occurrence must be defined in the description of any object defined using this type. If sysUpTime is reset to zero as a result of a re- initialization of the network management (sub)system, then the values of all TimeStamp objects are also reset. However, after approximately 497 days without a re- initialization, the sysUpTime object will reach 2^^32-1 and then increment around to zero; in this case, existing values of TimeStamp objects do not change. This can lead to ambiguities in the value of TimeStamp objects. · TimeTicks

The value of sysUpTime at the time this entry was last updated. If this entry was updated prior to the last re-initialization of the local network management subsystem, then this object contains a zero value.

TruthValue1 = true2 = falseRepresents a boolean value. · Integer32

Setting this object to the value 'false(2)' has the effect of invalidating the corresponding entry in the ipv6NetToMediaTable. That is, it effectively disassociates the interface identified with said entry from the mapping identified with said entry. It is an implementation-specific matter as to whether the agent removes an invalidated entry from the table. Accordingly, management stations must be prepared to receive tabular information from agents that corresponds to entries not currently in use. Proper interpretation of such entries requires examination of the relevant ipv6NetToMediaValid object.