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MIB Information: ip
1.3.6.1.2.1.4
MIB Information: ipForwarding
1.3.6.1.2.1.4.1
mandatory read-write
Description: The indication of whether this entity is acting as an IP gateway in respect to the forwarding of datagrams received by but not addressed to this entity. IP gateways forward datagrams. IP hosts do not (except those source-routed via the host). Note that for some managed nodes this object may take on only a subset of the values possible. Accordingly it is appropriate for an agent to return a \QbadValue' response if a management station attempts to change this object to an inappropriate value.
Settings: INTEGER
Syntax Ref. Type: ENUM
(1) = forwarding
(2) = not-forwarding
MIB Information: ipDefaultTTL
1.3.6.1.2.1.4.2
mandatory read-write
Description: The default value inserted into the Time-To-Live field of the IP header of datagrams originated at this entity whenever a TTL value is not supplied by the transport layer protocol.
Settings: INTEGER
MIB Information: ipInReceives
1.3.6.1.2.1.4.3
mandatory read-only
Description: The total number of input datagrams received from interfaces including those received in error.
Settings: Counter
MIB Information: ipInHdrErrors
1.3.6.1.2.1.4.4
mandatory read-only
Description: The number of input datagrams discarded due to errors in their IP headers including bad checksums version number mismatch other format errors time-to-live exceeded errors discovered in processing their IP options etc.
Settings: Counter
MIB Information: ipInAddrErrors
1.3.6.1.2.1.4.5
mandatory read-only
Description: The number of input datagrams discarded because the IP address in their IP header's destination field was not a valid address to be received at this entity. This count includes invalid addresses (e.g. 0.0.0.0) and addresses of unsupported Classes (e.g. Class E). For entities which are not IP Gateways and therefore do not forward datagrams this counter includes datagrams discarded because the destination address was not a local address.
Settings: Counter
MIB Information: ipForwDatagrams
1.3.6.1.2.1.4.6
mandatory read-only
Description: The number of input datagrams for which this entity was not their final IP destination as a result of which an attempt was made to find a route to forward them to that final destination. In entities which do not act as IP Gateways this counter will include only those packets which were Source-Routed via this entity and the Source- Route option processing was successful.
Settings: Counter
MIB Information: ipInUnknownProtos
1.3.6.1.2.1.4.7
mandatory read-only
Description: The number of locally-addressed datagrams received successfully but discarded because of an unknown or unsupported protocol.
Settings: Counter
MIB Information: ipInDiscards
1.3.6.1.2.1.4.8
mandatory read-only
Description: The number of input IP 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.
Settings: Counter
MIB Information: ipInDelivers
1.3.6.1.2.1.4.9
mandatory read-only
Description: The total number of input datagrams successfully delivered to IP user-protocols (including ICMP).
Settings: Counter
MIB Information: ipOutRequests
1.3.6.1.2.1.4.10
mandatory read-only
Description: The total number of IP datagrams which local IP user-protocols (including ICMP) supplied to IP in requests for transmission. Note that this counter does not include any datagrams counted in ipForwDatagrams.
Settings: Counter
MIB Information: ipOutDiscards
1.3.6.1.2.1.4.11
mandatory read-only
Description: The number of output IP 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 ipForwDatagrams if any such packets met this (discretionary) discard criterion.
Settings: Counter
MIB Information: ipOutNoRoutes
1.3.6.1.2.1.4.12
mandatory read-only
Description: The number of IP datagrams discarded because no route could be found to transmit them to their destination. Note that this counter includes any packets counted in ipForwDatagrams which meet this \Qno-route' criterion. Note that this includes any datagarms which a host cannot route because all of its default gateways are down.
Settings: Counter
MIB Information: ipReasmTimeout
1.3.6.1.2.1.4.13
mandatory read-only
Description: The maximum number of seconds which received fragments are held while they are awaiting reassembly at this entity.
Settings: INTEGER
MIB Information: ipReasmReqds
1.3.6.1.2.1.4.14
mandatory read-only
Description: The number of IP fragments received which needed to be reassembled at this entity.
Settings: Counter
MIB Information: ipReasmOKs
1.3.6.1.2.1.4.15
mandatory read-only
Description: The number of IP datagrams successfully re- assembled.
Settings: Counter
MIB Information: ipReasmFails
1.3.6.1.2.1.4.16
mandatory read-only
Description: The number of failures detected by the IP re- assembly algorithm (for whatever reason: timed out errors etc). Note that this is not necessarily a count of discarded IP 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.
Settings: Counter
MIB Information: ipFragOKs
1.3.6.1.2.1.4.17
mandatory read-only
Description: The number of IP datagrams that have been successfully fragmented at this entity.
Settings: Counter
MIB Information: ipFragFails
1.3.6.1.2.1.4.18
mandatory read-only
Description: The number of IP datagrams that have been discarded because they needed to be fragmented at this entity but could not be e.g. because their Don't Fragment flag was set.
Settings: Counter
MIB Information: ipFragCreates
1.3.6.1.2.1.4.19
mandatory read-only
Description: The number of IP datagram fragments that have been generated as a result of fragmentation at this entity.
Settings: Counter
MIB Information: ipAddrTable
1.3.6.1.2.1.4.20
not-accessible
Description: The table of addressing information relevant to this entity's IP addresses.
MIB Information: ipAddrEntry
1.3.6.1.2.1.4.20.1
not-accessible
Description: The addressing information for one of this entity's IP addresses.
MIB Information: ipAdEntAddr
1.3.6.1.2.1.4.20.1.1
mandatory read-only
Description: The IP address to which this entry's addressing information pertains.
Settings: IpAddress
MIB Information: ipAdEntIfIndex
1.3.6.1.2.1.4.20.1.2
mandatory read-only
Description: The index value which uniquely identifies the interface to which this entry is applicable. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex.
Settings: INTEGER
MIB Information: ipAdEntNetMask
1.3.6.1.2.1.4.20.1.3
mandatory read-only
Description: The subnet mask associated with the IP address of this entry. The value of the mask is an IP address with all the network bits set to 1 and all the hosts bits set to 0.
Settings: IpAddress
MIB Information: ipAdEntBcastAddr
1.3.6.1.2.1.4.20.1.4
mandatory read-only
Description: The value of the least-significant bit in the IP broadcast address used for sending datagrams on the (logical) interface associated with the IP address of this entry. For example when the Internet standard all-ones broadcast address is used the value will be 1. This value applies to both the subnet and network broadcasts addresses used by the entity on this (logical) interface.
Settings: INTEGER
MIB Information: ipAdEntReasmMaxSize
1.3.6.1.2.1.4.20.1.5
mandatory read-only
Description: The size of the largest IP datagram which this entity can re-assemble from incoming IP fragmented datagrams received on this interface.
Settings: INTEGER
Syntax Ref. Type: RANGE
0 = 65535
MIB Information: ipRouteTable
1.3.6.1.2.1.4.21
not-accessible
Description: This entity's IP Routing table.
MIB Information: ipRouteEntry
1.3.6.1.2.1.4.21.1
not-accessible
Description: A route to a particular destination.
MIB Information: ipRouteDest
1.3.6.1.2.1.4.21.1.1
mandatory read-write
Description: The destination IP address of this route. An entry with a value of 0.0.0.0 is considered a default route. Multiple routes to a single destination can appear in the table but access to such multiple entries is dependent on the table- access mechanisms defined by the network management protocol in use.
Settings: IpAddress
MIB Information: ipRouteIfIndex
1.3.6.1.2.1.4.21.1.2
mandatory read-write
Description: 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 ifIndex.
Settings: INTEGER
MIB Information: ipRouteMetric1
1.3.6.1.2.1.4.21.1.3
mandatory read-write
Description: The primary routing metric for this route. The semantics of this metric are determined by the routing-protocol specified in the route's ipRouteProto value. If this metric is not used its value should be set to -1.
Settings: INTEGER
MIB Information: ipRouteMetric2
1.3.6.1.2.1.4.21.1.4
mandatory read-write
Description: An alternate routing metric for this route. The semantics of this metric are determined by the routing-protocol specified in the route's ipRouteProto value. If this metric is not used its value should be set to -1.
Settings: INTEGER
MIB Information: ipRouteMetric3
1.3.6.1.2.1.4.21.1.5
mandatory read-write
Description: An alternate routing metric for this route. The semantics of this metric are determined by the routing-protocol specified in the route's ipRouteProto value. If this metric is not used its value should be set to -1.
Settings: INTEGER
MIB Information: ipRouteMetric4
1.3.6.1.2.1.4.21.1.6
mandatory read-write
Description: An alternate routing metric for this route. The semantics of this metric are determined by the routing-protocol specified in the route's ipRouteProto value. If this metric is not used its value should be set to -1.
Settings: INTEGER
MIB Information: ipRouteNextHop
1.3.6.1.2.1.4.21.1.7
mandatory read-write
Description: The IP address of the next hop of this route. (In the case of a route bound to an interface which is realized via a broadcast media the value of this field is the agent's IP address on that interface.)
Settings: IpAddress
MIB Information: ipRouteType
1.3.6.1.2.1.4.21.1.8
mandatory read-write
Description: The type of route. Note that the values direct(3) and indirect(4) refer to the notion of direct and indirect routing in the IP architecture. Setting this object to the value invalid(2) has the effect of invalidating the corresponding entry in the ipRouteTable object. That is it effectively dissasociates 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 ipRouteType object.
Settings: INTEGER
Syntax Ref. Type: ENUM
(1) = other
(2) = invalid
(3) = direct
(4) = indirect
MIB Information: ipRouteProto
1.3.6.1.2.1.4.21.1.9
mandatory read-only
Description: The routing mechanism via which this route was learned. Inclusion of values for gateway routing protocols is not intended to imply that hosts should support those protocols.
Settings: INTEGER
Syntax Ref. Type: ENUM
(1) = other
(2) = local
(3) = netmgmt
(4) = icmp
(5) = egp
(6) = ggp
(7) = hello
(8) = rip
(9) = is-is
(10) = es-is
(11) = ciscoIgrp
(12) = bbnSpfIgp
(13) = ospf
(14) = bgp
MIB Information: ipRouteAge
1.3.6.1.2.1.4.21.1.10
mandatory read-write
Description: The number of seconds since this route was last updated or otherwise determined to be correct. Note that no semantics of \Qtoo old' can be implied except through knowledge of the routing protocol by which the route was learned.
Settings: INTEGER
MIB Information: ipRouteMask
1.3.6.1.2.1.4.21.1.11
mandatory read-write
Description: Indicate the mask to be logical-ANDed with the destination address before being compared to the value in the ipRouteDest field. For those systems that do not support arbitrary subnet masks an agent constructs the value of the ipRouteMask by determining whether the value of the correspondent ipRouteDest field belong to a class-A B or C network and then using one of: mask network 255.0.0.0 class-A 255.255.0.0 class-B 255.255.255.0 class-C If the value of the ipRouteDest is 0.0.0.0 (a default route) then the mask value is also 0.0.0.0. It should be noted that all IP routing subsystems implicitly use this mechanism.
Settings: IpAddress
MIB Information: ipRouteMetric5
1.3.6.1.2.1.4.21.1.12
mandatory read-write
Description: An alternate routing metric for this route. The semantics of this metric are determined by the routing-protocol specified in the route's ipRouteProto value. If this metric is not used its value should be set to -1.
Settings: INTEGER
MIB Information: ipRouteInfo
1.3.6.1.2.1.4.21.1.13
mandatory read-only
Description: 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 ipRouteProto value. If this information is not present its value should be set to the OBJECT IDENTIFIER 0 0 which is a syntatically valid object identifier and any conformant implementation of ASN.1 and BER must be able to generate and recognize this value.
Settings: OBJECT IDENTIFIER
MIB Information: ipNetToMediaTable
1.3.6.1.2.1.4.22
not-accessible
Description: The IP Address Translation table used for mapping from IP addresses to physical addresses.
MIB Information: ipNetToMediaEntry
1.3.6.1.2.1.4.22.1
not-accessible
Description: Each entry contains one IpAddress to \Qphysical' address equivalence.
MIB Information: ipNetToMediaIfIndex
1.3.6.1.2.1.4.22.1.1
mandatory read-write
Description: The interface on which this entry's equivalence is effective. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex.
Settings: INTEGER
MIB Information: ipNetToMediaPhysAddress
1.3.6.1.2.1.4.22.1.2
mandatory read-write
Description: The media-dependent \Qphysical' address.
Settings: PhysAddress
MIB Information: ipNetToMediaNetAddress
1.3.6.1.2.1.4.22.1.3
mandatory read-write
Description: The IpAddress corresponding to the media- dependent \Qphysical' address.
Settings: IpAddress
MIB Information: ipNetToMediaType
1.3.6.1.2.1.4.22.1.4
mandatory read-write
Description: The type of mapping. Setting this object to the value invalid(2) has the effect of invalidating the corresponding entry in the ipNetToMediaTable. That is it effectively dissasociates 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 ipNetToMediaType object.
Settings: INTEGER
Syntax Ref. Type: ENUM
(1) = other
(2) = invalid
(3) = dynamic
(4) = static
MIB Information: ipRoutingDiscards
1.3.6.1.2.1.4.23
mandatory read-only
Description: The number of routing entries which were chosen to be discarded even though they are valid. One possible reason for discarding such an entry could be to free-up buffer space for other routing entries.
Settings: Counter
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