no SNMP remote communication

I've just installed net-snmp, v 5.2, on two Linux systems,
and locally, each works, but they don't talk to each
other. "snmpget ling sysUpTime.0" gives "snmpget: Timeout".

I started the snmpd daemon on both systems with "-d", and
when I watch /var/log/snmpd.log, I see no packets sent or
received on either system. There's no firewall, so far as
I know. On the sending system side, "netstat -u -s" gives
"258926 packets sent" before the "snmpget" and afterward,
gives "258932 packets sent", but on the receiving system,
the figure for packets received doesn't change.

Any ideas about what I'm doing wrong?

(Sending system has Linux 2.6.6, receiving system has Linux
2.6.9.)

--
Greg Lee <(E-Mail Removed)>

Greg Lee wrote:
> I've just installed net-snmp, v 5.2, on two Linux systems,
> and locally, each works, but they don't talk to each
> other.
> ...
> Any ideas about what I'm doing wrong?

Things to try and things I've been bitten by:

- Do you need to force V2c?
- Do you need to edit the config file?
- Is firewalling turned off?
- Run ethereal at the far end. Better yet, run ethereal at both ends.

Allen McIntosh <(E-Mail Removed)> wrote:
> Greg Lee wrote:
> > I've just installed net-snmp, v 5.2, on two Linux systems,
> > and locally, each works, but they don't talk to each
> > other.
> > ...
> > Any ideas about what I'm doing wrong?

> Things to try and things I've been bitten by:

> - Do you need to force V2c?

"-v1", "-v2c", "-v3" give the same result.

> - Do you need to edit the config file?

I don't understand the config options very well, but I have done
considerable fiddling with the config files.

> - Is firewalling turned off?

I think so. I never set it up, there is no reference to "iptables"
in my init scripts, and "iptables -L" shows no entries.

> - Run ethereal at the far end. Better yet, run ethereal at both ends.

I never heard of ethereal. I'm in the process of installing it.

Thanks for the suggestions.
--
Greg Lee <(E-Mail Removed)>

> I never heard of ethereal. I'm in the process of installing it.
Think of it as tcpdump with lots more decodes and a GUI.