mrtg configuration

[Sebastiaan <S.Breedveld@ITS.TUDelft.NL>]

Hi,

I am trying to visualize the traffic on my local network with mrtg, but I
get some errors. My mrtg config file is this:

# This file is for use with mrtg-2.5.4c

# Global configuration
WorkDir: /var/www/mrtg
WriteExpires: Yes

Title[^]: Traffic Analysis for
PageTop[^]: <H1>Stats for
MaxBytes[_]: 8000
Options[_]: growright

Title[lan]: interface eth0
PageTop[lan]: interface eth0</H1>
Target[lan]: 2:public@192.168.1.254



but when running 'mrtg /etc/mrtg.cfg' I get smnp errors:
SNMP Error:
no response received
SNMPv1_Session (remote host: "192.168.1.254" [192.168.1.254].161)
                  community: "public"
                 request ID: 1844015366
                PDU bufsize: 8000 bytes
                    timeout: 2s
                    retries: 5
                    backoff: 1)
 at /usr/lib/perl5/SNMP_util.pm line 456
SNMPGET Problem for ifInOctets.2 ifOutOctets.2 sysUptime sysName on public@192.168.1.254
 at /usr/bin/mrtg line 1496
WARNING: Expected a number but got ''
WARNING: Expected a number but got ''


to be onest, I have no idea where SNMP is used for, but I read in the docs
that mrtg is able to work without extra snmp installations. I just want
the traffic on eth0 measured.

Any hints?

Thanks in advance,
Sebastiaan


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