>> MIB - Management Information Base

>> Table: ip - (.1.3.6.1.2.1.4)

ip
OIDNameTypeAccess
.1ForwardingENUMRW
.2DefaultTTLINTEGERRW
.3InReceivesCounterR
.4InHdrErrorsCounterR
.5InAddrErrorsCounterR
.6ForwDatagramsCounterR
.7InUnknownProtosCounterR
.8InDiscardsCounterR
.9InDeliversCounterR
.10OutRequestsCounterR
.11OutDiscardsCounterR
.12OutNoRoutesCounterR
.13ReasmTimeoutINTEGERR
.14ReasmReqdsCounterR
.15ReasmOKsCounterR
.16ReasmFailsCounterR
.17FragOKsCounterR
.18FragFailsCounterR
.19FragCreatesCounterR
.23RoutingDiscardsCounterR

Forwarding
The indication of whether the BRICK is acting as an IP
gateway in respect to the forwarding of datagrams 
received by, but not addressed to, the BRICK. IP gateways
forward datagrams. IP hosts do not (except those source-
routed via the host).
Note that for the BRICK, this object is always set to
'forwarding'.
forwarding(1)		= acting as a gateway;
not-forwarding(2)	= NOT acting as a gateway
Enumerations:
  • forwarding (1)
  • not-forwarding (2)
DefaultTTL
The default value inserted into the Time-To-Live field
of the IP header of datagrams originated at the BRICK,
whenever a TTL value is not supplied by the transport
layer protocol.
InReceives
The total number of input datagrams received from
interfaces, including those received in error.
InHdrErrors
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.
InAddrErrors
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 the BRICK. This
count includes invalid addresses (e.g., 0.0.0.0) and 
addresses of unsupported Classes (e.g., Class E).
ForwDatagrams
The number of input datagrams for which the BRICK
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.
InUnknownProtos
The number of locally-addressed datagrams
received successfully but discarded because of an
unknown or unsupported protocol.
InDiscards
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.
InDelivers
The total number of input datagrams successfully
delivered to IP user-protocols (including ICMP).
OutRequests
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.
OutDiscards
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).
OutNoRoutes
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
`no-route' criterion.  Note that this includes any
datagarms which a host cannot route because all of
its default gateways are down.
ReasmTimeout
The maximum number of seconds which received
fragments are held while they are awaiting
reassembly at the BRICK.
ReasmReqds
The number of IP fragments received which needed
to be reassembled at the BRICK.
ReasmOKs
The number of IP datagrams successfully 
re-assembled.
ReasmFails
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.
FragOKs
The number of IP datagrams that have been
successfully fragmented at the BRICK.
FragFails
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.
FragCreates
The number of IP datagram fragments that have
been generated as a result of fragmentation at
the BRICK.
RoutingDiscards
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.


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