Dave,

 So enabled the snmptrapd and I configured the router to send the v3 traps to 
my box and I am now seeing the v3 traps come through Wireshark. Its working.  
Thanks for the assistance. 

Andrew

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf 
Of Dave Shield
Sent: Tuesday, May 05, 2009 1:47 AM
To: Huber, Andrew
Cc: [email protected]
Subject: Re: snmpv3 capture question

2009/5/4 Huber, Andrew <[email protected]>:
>   I am recently installed net-snmp on a Windows 2003 server machine. I am
> having a couple issues with net-snmp running properly. Here is what I am
> trying to do. I need to capture snmpv3 traffic/traps from a Juniper router
> via Wireshark. So I just need to see these traps hitting my NIC as version 3
> traps at this point. Does net-snmp need to be running on my Windows 2003
> server box to be able to do this?

If you want to accept and process these notifications, then you need
something running on your NIC to do so.   This could be the Net-SNMP
trap receiver (snmptrapd), or some other trap-handling software.

If you just want to capture the notification packets, then all you really
need is to configure the router to send traps to this system.   There
probably doesn't need to be anything running on the server to actually
receive them.
   (Although if you are sending SNMPv3 INFORM requests, rather than
traps,  you may need snmptrapd to be running, in order to handle any
probes for engineID and boot/time information.   This depends on exactly
how the router handles things).

You certainly don't need an SNMP *agent* running on the NIC system in
order to receive notifications.

Dave

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