On Fri, 2007-07-27 at 10:08 +0000, Anton Smith wrote: > Hi all, the following is on behalf of a work mate:
Sadly the ipAdEnt* table is one of the less well-designed MIBs (e.g. ipNetToMedia has ifIndex *before* the IP so can handle VRFs and overlapping IP space just fine without modification) There's a bunch of documentation on the Cisco site about binding snmpv3 contexts to a VRF and getting VRF-specific MIBs, but it's never worked when I tried it. Google for: site:cisco.com snmp context vrf Also see the MPLS-VPN mib - you could look under mplsVpnVrfRouteProto for "local" routes, then extract the route and output ifIndex. > > ------------ > > Problem using SNMPget for ipAdEntIfIndex and IfIndex on Cisco > 7600/3660/7200: > > It regards getting information on what ipaddress is connected to what > interface. > I use ipAdEntIfIndex to find out what ipaddress goes with what ifIndex. > Example: IP-MIB::ipAdEntIfIndex.10.10.10.10 = INTEGER: 111 > Here I've connectect an interface to a VRF called for example A, and > configure the ipaddress 10.10.10.10 with whatever mask. > This ipaddress in configured on an interface I call Loopback660. > > Now if I create another interface called Loopback661 and connect it to > another VRF B, but with the same IP address 10.10.10.10, the oid changes > to: IP-MIB::ipAdEntIfIndex.10.10.10.10 = INTEGER: 112 > And the other oid disappears. So it’s overwritten. > Now I have two interfaces on different VRF’s with the same IPaddress. > > The configuration works fine of course, but when I try to manage my > IPaddress list through SNMP I have problems distinguishing between two > interfaces. > > What I'm trying to do is to input the ipaddress 10.10.10.10 and find out > what interface it is connected to. > > > Any information on what I could do to fix this? > > -------------- > > Regards, > Anton > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
