--------- Original Message --------
Da: "Mike Ayers" <[email protected]>
To: "[email protected]"
<[email protected]>
Oggetto: RE: Querying SNMP from a different class IP
Data: 16/07/09 19:45
From: Maria Elena Vismara [mailto:[email protected]]
Sent: Thu 7/16/2009 7:24 AM
> in my society we would like having an SNMP/Monitor machine in a
different
> class from other machines (let's say ip class A for the querying
machine and
> class B for the others).
Why? IP classes are an obsolete concept that never really meant5 anything
anyway.
> I am trying to get this, but I have a big problem...I made all
exceptions in
> firewalls, I installed snmp on clients and snmp + mrtg on the monitor
> machine, but I can not get a correct result...I always get a "snmpget:
> Timeout" or a "Timeout: No Response from ....".
> I am not skilled in snmp, so, I think that I missed something in the
conf
> file or in the community...anyone has an idea?
First, have you tried accessing these instances from the same machine they
are on? If you can retrieve the instances at the source host using the
external address, then the SNMP is configured correctly. If you are using
com2sec with source address restrictions, make sure that the source host of
the requests is permitted to query. Next, back your way out one jump at a
time towards the host you can't reach your master agent from. At some point
you'll get timeouts - that is the gateway you need to poke a hole in.
Hi Mike, thanks for the reply.
I have done a traceroute commmand and I get many ***...it is possible that
is the matter?
>From the same host the snmp works fine, and also from hosts in the same
network.
Any idea?
Thank you!
HTH,
Mike
Bye
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