📄 rfc2096.txt
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RFC 2096 IP Forwarding Table MIB January 1997
egp (5), -- Exterior Gateway Protocol
ggp (6), -- Gateway-Gateway Protocol
hello (7), -- FuzzBall HelloSpeak
rip (8), -- Berkeley RIP or RIP-II
isIs (9), -- Dual IS-IS
esIs (10), -- ISO 9542
ciscoIgrp (11), -- Cisco IGRP
bbnSpfIgp (12), -- BBN SPF IGP
ospf (13), -- Open Shortest Path First
bgp (14), -- Border Gateway Protocol
idpr (15), -- InterDomain Policy Routing
ciscoEigrp (16) -- Cisco EIGRP
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The routing mechanism via which this route was
learned. Inclusion of values for gateway rout-
ing protocols is not intended to imply that
hosts should support those protocols."
::= { ipCidrRouteEntry 7 }
ipCidrRouteAge OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"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."
DEFVAL { 0 }
::= { ipCidrRouteEntry 8 }
ipCidrRouteInfo OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A reference to MIB definitions specific to the
particular routing protocol which is responsi-
ble for this route, as determined by the value
specified in the route's ipCidrRouteProto value.
If this information is not present, its value
should be set to the OBJECT IDENTIFIER { 0 0 },
which is a syntactically valid object identif-
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RFC 2096 IP Forwarding Table MIB January 1997
ier, and any implementation conforming to ASN.1
and the Basic Encoding Rules must be able to
generate and recognize this value."
::= { ipCidrRouteEntry 9 }
ipCidrRouteNextHopAS OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Autonomous System Number of the Next Hop.
The semantics of this object are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. When this object is
unknown or not relevant its value should be set
to zero."
DEFVAL { 0 }
::= { ipCidrRouteEntry 10 }
ipCidrRouteMetric1 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The primary routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 11 }
ipCidrRouteMetric2 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 12 }
ipCidrRouteMetric3 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
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RFC 2096 IP Forwarding Table MIB January 1997
STATUS current
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 13 }
ipCidrRouteMetric4 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 14 }
ipCidrRouteMetric5 OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route.
The semantics of this metric are determined by
the routing-protocol specified in the route's
ipCidrRouteProto value. If this metric is not
used, its value should be set to -1."
DEFVAL { -1 }
::= { ipCidrRouteEntry 15 }
ipCidrRouteStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The row status variable, used according to
row installation and removal conventions."
::= { ipCidrRouteEntry 16 }
-- conformance information
ipForwardConformance OBJECT IDENTIFIER ::= { ipForward 5 }
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RFC 2096 IP Forwarding Table MIB January 1997
ipForwardGroups OBJECT IDENTIFIER ::= { ipForwardConformance 1 }
ipForwardCompliances OBJECT IDENTIFIER ::= { ipForwardConformance 2 }
-- compliance statements
ipForwardCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMPv2 entities
which implement the ipForward MIB."
MODULE -- this module
MANDATORY-GROUPS { ipForwardCidrRouteGroup }
::= { ipForwardCompliances 1 }
-- units of conformance
ipForwardCidrRouteGroup OBJECT-GROUP
OBJECTS { ipCidrRouteNumber,
ipCidrRouteDest, ipCidrRouteMask, ipCidrRouteTos,
ipCidrRouteNextHop, ipCidrRouteIfIndex, ipCidrRouteType,
ipCidrRouteProto, ipCidrRouteAge, ipCidrRouteInfo,
ipCidrRouteNextHopAS, ipCidrRouteMetric1,
ipCidrRouteMetric2, ipCidrRouteMetric3,
ipCidrRouteMetric4, ipCidrRouteMetric5, ipCidrRouteStatus
}
STATUS current
DESCRIPTION
"The CIDR Route Table."
::= { ipForwardGroups 3 }
-- Obsoleted Definitions - Objects
ipForwardNumber OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS obsolete
DESCRIPTION
"The number of current ipForwardTable entries
that are not invalid."
::= { ipForward 1 }
-- IP Forwarding Table
-- The IP Forwarding Table obsoletes and replaces the ipRoute
-- Table current in MIB-I and MIB-II. It adds knowledge of
-- the autonomous system of the next hop, multiple next hop
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RFC 2096 IP Forwarding Table MIB January 1997
-- support, and policy routing support.
ipForwardTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpForwardEntry
MAX-ACCESS not-accessible
STATUS obsolete
DESCRIPTION
"This entity's IP Routing table."
REFERENCE
"RFC 1213 Section 6.6, The IP Group"
::= { ipForward 2 }
ipForwardEntry OBJECT-TYPE
SYNTAX IpForwardEntry
MAX-ACCESS not-accessible
STATUS obsolete
DESCRIPTION
"A particular route to a particular destina-
tion, under a particular policy."
INDEX {
ipForwardDest,
ipForwardProto,
ipForwardPolicy,
ipForwardNextHop
}
::= { ipForwardTable 1 }
IpForwardEntry ::=
SEQUENCE {
ipForwardDest
IpAddress,
ipForwardMask
IpAddress,
ipForwardPolicy
Integer32,
ipForwardNextHop
IpAddress,
ipForwardIfIndex
Integer32,
ipForwardType
INTEGER,
ipForwardProto
INTEGER,
ipForwardAge
Integer32,
ipForwardInfo
OBJECT IDENTIFIER,
ipForwardNextHopAS
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RFC 2096 IP Forwarding Table MIB January 1997
Integer32,
ipForwardMetric1
Integer32,
ipForwardMetric2
Integer32,
ipForwardMetric3
Integer32,
ipForwardMetric4
Integer32,
ipForwardMetric5
Integer32
}
ipForwardDest OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS obsolete
DESCRIPTION
"The destination IP address of this route. An
entry with a value of 0.0.0.0 is considered a
default route.
This object may not take a Multicast (Class D)
address value.
Any assignment (implicit or otherwise) of an
instance of this object to a value x must be
rejected if the bitwise logical-AND of x with
the value of the corresponding instance of the
ipForwardMask object is not equal to x."
::= { ipForwardEntry 1 }
ipForwardMask OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-create
STATUS obsolete
DESCRIPTION
"Indicate the mask to be logical-ANDed with the
destination address before being compared to
the value in the ipForwardDest field. For
those systems that do not support arbitrary
subnet masks, an agent constructs the value of
the ipForwardMask by reference to the IP Ad-
dress Class.
Any assignment (implicit or otherwise) of an
instance of this object to a value x must be
rejected if the bitwise logical-AND of x with
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RFC 2096 IP Forwarding Table MIB January 1997
the value of the corresponding instance of the
ipForwardDest object is not equal to ipForward-
Dest."
DEFVAL { '00000000'h } -- 0.0.0.0
::= { ipForwardEntry 2 }
-- The following convention is included for specification
-- of TOS Field contents. At this time, the Host Requirements
-- and the Router Requirements documents disagree on the width
-- of the TOS field. This mapping describes the Router
-- Requirements mapping, and leaves room to widen the TOS field
-- without impact to fielded systems.
ipForwardPolicy OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS obsolete
DESCRIPTION
"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 ipForwardPro-
to specifies otherwise, the policy specifier is
the IP TOS Field. The encoding of IP TOS is as
specified by the following convention. Zero
indicates the default path if no more specific
policy applies.
+-----+-----+-----+-----+-----+-----+-----+-----+
| | | |
| PRECEDENCE | TYPE OF SERVICE | 0 |
| | | |
+-----+-----+-----+-----+-----+-----+-----+-----+
IP TOS IP TOS
Field Policy Field Policy
Contents Code Contents Code
0 0 0 0 ==> 0 0 0 0 1 ==> 2
0 0 1 0 ==> 4 0 0 1 1 ==> 6
0 1 0 0 ==> 8 0 1 0 1 ==> 10
0 1 1 0 ==> 12 0 1 1 1 ==> 14
1 0 0 0 ==> 16 1 0 0 1 ==> 18
1 0 1 0 ==> 20 1 0 1 1 ==> 22
1 1 0 0 ==> 24 1 1 0 1 ==> 26
1 1 1 0 ==> 28 1 1 1 1 ==> 30
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RFC 2096 IP Forwarding Table MIB January 1997
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