E. SNMP MIB Objects

IP Group – “ipRouteTable” Object (ip 21)

The routing table used by the DSU/CSU is supported as a read/write table. Entries in this table may be added, deleted, or changed. You should exercise great caution when adding or modifying routes in the ipRoutingTable. In general, it should not be necessary to add or modify routes in the DSU/CSU. In those cases where it is deemed necessary, the routes should only be added to the connected device (i.e., the device closest to the destination). Internal routing mechanisms will propagate the route to the other devices.

An existing route may be effectively deleted by setting the ipRouteType object to “invalid” for the entry to be deleted. An existing route may be modified by changing fields in the desired entry (indexed by ipRouteDest) of the routing table. A new route may be added by specifying values for a table entry for which the index (“ipRouteDest”) does not already exist.

o add a route using an SNMP set, you must specify a group of minimal objects. hese variable bindings must be contained in a single Protocol Data Unit (PDU). he objects are described in more detail in the following sections. The minimal set

consists of:

TipRouteDest ipRouteIfIndex

he following objects are defaulted if not specified in the set PDU used to add a route.

ipRouteMetric1 – Defaulted to 1 hop.

ipRouteMetric2 – Defaulted to current slot for carrier devices and –1 for standalone devices.

TipRouteType – Defaulted to indirect.

ipRouteMask – Defaulted as specified in the MIB description.

he following objects are unused in the DSU/CSU and setting them will have no effect on the operation of the IP implementation.

ipRouteMetric3, ipRouteMetric4, ipRouteMetric5 – Defaulted to –1 as

Tspecified in the MIB.

ipRouteNextHop – Defaulted to 0.0.0.0.

he following read-only objects must not be specified in the set PDU used to add a route.

ipRouteProto – Set to netmgmt(3) by software.

TipRouteAge – Defaulted to 999.

ipRouteInfo – Set to OBJECT IDENTIFIER {0, 0} since it is unused.

3160-A2-GB21-90

February 2001

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Paradyne 3164-A2, 3165-A2, 3160-A3, 3161-B3 manual IP Group ipRouteTable Object ip