[mrtg] cfgmaker base: Walking vmVlan fails
Jan.Ferre at uni-c.dk
Mon Mar 21 11:57:40 CET 2011
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I don't know about your specific device, but in general I would suggest
you to use SNMPv2.
I don't think you can limit the MIBs to be scannable, but you can make
sure the community is read-only and that it's allowed only from your
access-list 9 permit host 126.96.36.199
snmp-server community bluesuede ro 9
or with a named access-list
ip access-list standard kyrilograph
permit host 188.8.131.52
snmp-server community bluesuede ro kyrilograph
Next thing I wonder about is the notion 'v4only' - does the interface in
question use IPv6?
On 2011-03-21 09:30, bart sikkes wrote:
> made some progress by just skipping the vmVlan walking / reading for
> certain types of cisco routers. only it still doesn't quite work, im
> wondering if there is a list of MIBs to allow on a cisco device (if
> you don't grant full access) to have basic mrtg working (so just to
> create a working config by cfgmaker)?
> On Tue, Feb 15, 2011 at 9:53 AM, bart sikkes <b.sikkes at gmail.com> wrote:
>> 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: 184.108.40.206.220.127.116.11.18.104.22.168.1.2)
>> SNMPv1_Session (remote host: "22.214.171.124" [126.96.36.199].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 188.8.131.52.184.108.40.206.220.127.116.11.1.2 on
>> test at 18.104.22.168::::::v4only
>> 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,
> mrtg mailing list
> mrtg at lists.oetiker.ch
Jan Ferré - UNI-C Netdrift - DTU Bygning 304, DK-2800 Lyngby
tlf. +45 3587 8235, cell. +45 2160 8012, fax. +45 3587 8990
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