SNMP not working properly

Unanswered Question
Mar 2nd, 2007

Since i have upgraded my 7206 NP GE router all NMS have stopped working for this router.

Show snmp reading which are continuously increasing, but NMS says SNMP time out.

what is wrong?

All snmp community / ACLs are same.

MRTG/NNM have stopped working for this router. Any idea,

Is there any configuration difference between IOS 12.3(2)T and below?

Waiting for response


I have this problem too.
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schakra Fri, 03/02/2007 - 23:37

run #debug snmp packets

you will find some messages & may find out the reason.If not past the messages in the forum for further analysis.



kmeraj Sat, 03/03/2007 - 03:11

after turning on

Debug snmp packets it has the following output. Any idea?

mulfan#debug snmp packets

Mar 3 15:59:54.437 PST: SNMP: Packet received via UDP from A.B.C.D on Serial1/0

Mar 3 15:59:54.441 PST: SNMP: Get request, reqid 1806968397, errstat 0, erridx 0

ciscoMemoryPoolEntry.6.1 = NULL TYPE/VALUE

ciscoMemoryPoolEntry.5.1 = NULL TYPE/VALUE


system.5.0 = NULL TYPE/VALUE

Mar 3 15:59:54.445 PST: SNMP: Response, reqid 1806968397, errstat 0, erridx 0

ciscoMemoryPoolEntry.6.1 = 667573812

ciscoMemoryPoolEntry.5.1 = 184903596

sysUpTime.0 = 88139615

system.5.0 = mulfan

Mar 3 15:59:54.453 PST: SNMP: Packet sent via UDP to A.B.C.D

SNMP packet debugging is on

schakra Sat, 03/03/2007 - 05:07

It seems that router is sending snmp packet.

However it need to be checked that snmp port(161 usually) with the nms is communicating or not.

Configure & run nbar protocol discovery

you'll find input & output column protocol wise.

Both input & output for snmp should increase

you can also check from ip accounting

whether nms & router communicating through snmp


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