[mrtg] cfgmaker base: Walking vmVlan fails

bart sikkes b.sikkes at gmail.com
Tue Feb 15 09:53:45 CET 2011


I have been using mrtg without problems for a long time but recently
encountered some problems with routers from a new WAN provider. during
cfgmaker it fails on the vmVlan walking

--base: Walking vmVlan
SNMP Error:
Received SNMP response with error code
  error status: noSuchName
  index 1 (OID:
SNMPv1_Session (remote host: "" [].161)
                  community: "test"
                 request ID: -591419100
                PDU bufsize: 8000 bytes
                    timeout: 2s
                    retries: 5
                    backoff: 1)
 at /usr/bin/../lib/mrtg2/SNMP_util.pm line 627
SNMPWALK Problem for on
test at
 at /usr/bin/cfgmaker line 150

this happens for the FastEthernet0/0 interface and because of the
error it is commented out in the final config. the interface is up and
traffic flows through it.

I tried snmpwalking the device myself and that seems to work fine, so
community string is ok and device does allow some polling.

this is a Cisco 1841 router, IOS version Version 12.4(25d), exact SNMP
settings are unknown, as it is a provider managed device.

any clue where to look for the issue? mrtg setting, device setting?

thanks in advance,

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