Try it again on the 6000 only span the vlan the server is on. If you see everything then the server probably has two connections and it transmitting on one and receiving on the other.set span vlan# snifferport#

SaifSince you used the same network as is on your e0 interface the problem is probably that the router is not responding arp requests for the nat'd address. If you had used a different network you would have used routing to send the packets to the ro...

All you need to do is ping the gateway ip address from the host that should have the ip. That will reset the arp entry.

Seems like we had a problem once where the rotuer appeared to stop forwarding when someone took its address. What really happened was that traffic was going to the address thief instead of the router so the router didnt have it to forward.

The flash image is corrupted. At a minimum you need to reload it. You can try that without rebooting. Worst case you need new flash and need to load image on it.