Re: Two net-snmp machines - only one retrieves data from IBM AS/400

On 08/12/06, David Ingoldsby <DIngoldsby@idb.ie> wrote:
> I ran snmpget on both boxes Looking at the traffic with wireshark, on
> RHEL4 I see an SNMP get-request followed by a get-response. On CentOS i I
> see an SNMP get-request followed by a get-response, followed by an ICMP
> packet which appears to be resending the get-response back to the AS/400.
> The ICMP packet has flag setting saying "destination unreachable, host
> administratively prohibited".

Where are you querying these two agents from?
The same box that the agent is running on?
Or some other system on the network? What O/S is this running?

This sounds suspiciously like firewall or iptables-style settings on the
*client* side - the agent is sending back a response, but the client
machine is refusing to accept it.

Check any firewall-style settings on this client system.

Dave

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