> From: Traiano Welcome [mailto:[email protected]]
> Sent: Thursday, September 03, 2009 2:43 AM
> It looks like best option would be to script something to parse
> snmptrapd logs and draw these stats periodically.
You can also customize the format that traps are logged in, which
should help make parsing easier.
> Looking at my snmptrapd.log, I see traps come through with what seems
> to identify the sending host: " [UDP: [196.21.61.1]:64714]":
>
> ---
> 2009-09-03 11:33:45 <UNKNOWN> [UDP: [196.21.61.1]:64714]:
> .1.3.6.1.2.1.1.3.0 = Timeticks: (325635303) 37 days, 16:32:33.03
> .1.3.6.1.6.3.1.1.4.1.0 = OID: .1.3.6.1.6.3.1.1.5.5
> .1.3.6.1.4.1.9.2.1.5.0 = IpAddress: 196.26.130.34
> .1.3.6.1.4.1.9.9.412.1.1.1.0 = INTEGER: ipv4(1)
> .1.3.6.1.4.1.9.9.412.1.1.2.0 = STRING:
> ---
>
> Although the host specified above might be proxy for other hosts, I'd
> be able to differentiate knowing the location of the agents, and still
> draw some kind of rough statistics on the 'highest sending proxy'. Does
> this sound reasonable?
Yes, you seem to understand the key issue - forwarded traps don't have
an indication of their source. One workaround for this is to use different
community names for each source engine, but this has its drawbacks, mostly in
administrative overhead.
> I was hoping for builtin features :-) Anyhow, I think the best option
> here would be to use a generic munin plugin to monitor snmptrapd.
You could also install snmpd with the host resources MIBs, if they're
supported on your system.
HTH,
Mike
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