[c-nsp] IPv6 neighbor table via SNMP

[Phil Mayers]

On 07/11/2011 05:39 PM, Tom Ammon wrote:
> Hmmm...After generating some IPv6 traffic, then running the walk, it
> doesn't seem to know about this OID:
>
> [root at marchingmenfs ~]# snmpwalk -v 2c -c xxxxxxxxxxxxxxxxx
> inscc-rtr-core-a1-2.redhorn CISCO-IETF-IP-MIB::cInetNetToMediaTable
> Cannot find module (CISCO-IETF-IP-MIB): At line 0 in (none)
> CISCO-IETF-IP-MIB::cInetNetToMediaTable: Unknown Object Identifier

It definitely works in SXI5, because I tested it before I sent my email, 
and again just now.

$ snmpgetnext -v 2c me-core  sysDescr 
CISCO-IETF-IP-MIB::cInetNetToMediaPhysAddress

SNMPv2-MIB::sysDescr.0 = STRING: Cisco IOS Software, s72033_rp Software 
(s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(33)SXI5, RELEASE 
SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Sat 23-Oct-10 01:30 by pr

CISCO-IETF-IP-MIB::cInetNetToMediaPhysAddress.114.ipv6."20:01:...:82" = 
STRING: 0:15:c7:...:0

What does:

sh ipv6 neigh

...say at the same time you're doing this walk. To re-emphasise: things 
fall out of this table *really* quickly!

I guess it's possible they broke it in SXI6, but I think it's unlikely. 
Our lab box isn't currently running SXI6 so I can't test this I'm afraid.

...unless maybe the RFC-standard mib is supposed to be supported in SXI6?

Have you re-tried the RFC mib, ensuring "sh ipv6 neigh" has some output?

I will try to get SXI6 onto our lab box and re-test.