Snmpwalk timeout


#1

Been stuck on this for a few hours, can’t seem to figure out the problem.

All the machines are running CentOS 5 X64
No iptables

I have a nagios box, DNS, hosting machine, Main website box

They are all behind a firewall.

I have snmp setup on all the boxes and the cofig files are identical (just " rocommunity public ")

I run a snmpwalk from the nagios box to DNS and it works fine. Same goes for the hosting machine.
However, when I try it for the main website box, I get a timeout (see below)

[nagios ~]# snmpwalk -v 1 -c public xxx.xxx.xxx.xxx
Timeout: No Response from xxx.xxx.xxx.xxx

Here’s an nmap from the nagios machine on the main website box (fyi: I ran this on the entire netblock and they all look the same)

[nagios ~]# nmap -sU -T5 -vv -p 161 xxx.xxx.xxx.xxx
Interesting ports on xxxxxxxxxxxx.com (xxx.xxx.xxx.xxx):
PORT STATE SERVICE
161/udp open|filtered snmp

I’m completely at a loss right now. Please help.

Thanks.


#2

anyone?