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Monitoring traffic on router (3825)

parakiteiz
Level 1
Level 1

I have complaints for a downstream customer trying to connect to my network. He is the only one connecting to hosts via ssh. He is not showing up hitting the 3rd party (Mcaffee Sidewinder Firewall) between the 2 Cisco 3825 routers. I want to put wire shark on the first router to see what the issue might be. Can I span the GE0/0 port to one of the Fast Ethernet ports on this router to hook up a laptop with Wireshark to monitor the traffic of this device?

1 Reply 1

Collin Clark
VIP Alumni
VIP Alumni

You can capture packets directly on the router-

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/epc/command/epc-cr-book.html