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Monitor Session GRE Tunnel

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hobbes80

MIS
Dec 2, 2004
47
US
All--

I'm having some routing issues where I suspect my traffic is not following the appropriate route. I have a GRE tunnel between two sites and a VPN tunnel between two sites. I route all my pre-encrypted data traffic over the GRE tunnel and my non-encrypted traffic over the VPN tunnel.

The problem is, I'm not sure it's followin the correct routes because when I run an iperf.exe test through either tunnel, I get the same bandwidth results.

The route for the tunnel is 10.10.2.1 and is on the 6509 switch. The route for VPN is 10.10.0.1 and is a vlan interface assigned to the Firewall Software Module. A tracert shows it following the appropriate route through the GRE tunnel, but I want to be absolutely certain.

I tried to do a monitor session 10 source int tunnel0 to echo the traffic to my sniffer and the IOS won't let me put it in... it is looking for an interface or a vlan...

Any ideas how i can better prove the flow of traffic?

Thanks in Advance,
--Hobbes
 
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