[mrtg] SNMP based monitoring of Cisco dialer profiles

[Patrick De Muynck]

Does anybody know a workaround or an alternative solution
for the following problem?
(please cc to patrick at dreamtech.gr)

We have configured a Cisco router for dial-on-demand routing to
various remote sites, using BRI ISDN and dialer profiles.

I would like to monitor the status of the Dialer interfaces
("in use" or "not in use") via SNMP (and MRTG).

The problem is that the MIB-2 "operational status" reported
by the router for the Dialer interfaces is always "dormant",
whether the Dialer interfaces are in user or not
(MIB-2 interfaces.ifTable.ifEntry.ifOperStatus).

Maybe other MIBs can be used (ISDN or PPP related...)?


Thanks,

Patrick De Muynck
DreamTech, Athens

PS
The returned values for the BRI B-channel interfaces DO make sense
(SNMP reports "dormant" or "up"), but the problem is that the
mapping between the Dialer interfaces and the underlying B-channel
interface is variable.

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