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. |