Re: Duplicate SNMP requests

>>>>> On Fri, 6 Jun 2008 17:28:01 +0530, Naveen G <Naveen.G@Lntemsys.com> said:

NG> SNMP agent is receiving duplicate SNMP Get and Set requests, which it has
NG> processed earlier. There is no network activity to confirm that duplicate
NG> requests are from SNMP manager.

Duplicate requests can easily happen both because a manager retransmits
requests because it thinks one got lost and because networks sometimes
duplicate packets while in flight to the destination (rare, but it
happens).

NG> Debugging does not show any call reaching snmp_resend_request() function.
NG> Are there any other cases when SNMP agent sends the request to
NG> itself?

If the client is ours, and the 'retries' is set to 0 it shouldn't
resend. If using a command line tool (eg, snmpget) then use -t 0 to
accomplish this. If you want to see what it sends, add '-d' to show the
packets being sent (and you can easily count them ;-)
--
Wes Hardaker
Sparta, Inc.

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