RE: RSPAN question posted 10/28/2007
Well you could try this:
Say R1 and R2 are on the VLAN you're monitoring and R3 is receiving the
R1 and R2 are say on 10.0.0.0/24 subnet (.1 and .2 respectively).
Put R3 on some arbitrary network just so it has an IP address - say
184.108.40.206/8 and enable 'debug ip packet detail'.
Then on either R1 or R2 try pinging the all broadcast address
255.255.255.255 - you should see traffic hit R3.
It's not a sniffer but at least you should see some ICMP traffic on the
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Sent: Sunday, 28 October 2007 10:08
To: Gary Duncanson
Subject: RE: RSPAN question
Excellent many thanks. I'll be more specific. I know how to create a
remote span vlan and how to check I've created it. Beyond this I can create
a monitor session on the switch with the correct source, destination and
filter parameters. What I'm trying to do is perhaps run a ping and debug
test to prove the traffic goes to the sniffer port. Can't seem to find the
From: Gary Duncanson [mailto:gary.duncanson@xxxxxxxxxxxxxx]
Sent: Sunday, October 28, 2007 11:04 AM
To: Phillip Day
Subject: Re: RSPAN question
----- Original Message -----
From: "Phillip Day" <Phillip.Day@xxxxxxxxxxxxxx>
Sent: Sunday, October 28, 2007 9:45 AM
Subject: RSPAN question
> Does anyone know a good verification tool for RSPAN?
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