I'm having a small issue setting up MRTG to poll a linux box acting as a Firewall/Gateway. The iptables are set up to NAT, which I think may be causing the issue.
I'm not too up on iptables, so I am not too certain where to start.
I did find a similar problem on the forum. It was solved with a simple FQDN added to /etc/host but that hasn't resolved the issue for me.
Here is a snip of the error I receive.
root@mrtg:~# cfgmaker public@<ip_address>
no response received
SNMPv1_Session (remote host: "<ip_address>" [<ip_address>].161)
request ID: 1328749382
PDU bufsize: 8000 bytes
at /usr/share/perl5/SNMP_util.pm line 627
SNMPWALK Problem for 220.127.116.11.2.1.1 on public@<ip_address>::::::v4only
at /usr/bin/cfgmaker line 925
WARNING: Skipping public@<ip_address>: as no info could be retrieved
EDIT: Found typo in the servers configuration.