Sniffing traffic with ASA5500

[ronin2307]

I just purchased the ASA550 and since I am very new to Cisco equipment, I was wondering if it is possible to sniff packets on the ASA5500 and if so how?

thanks

[fzamora]

You can use the capture command for that, check below:

capture

To enable packet capture capabilities for packet sniffing and network fault isolation, use the capture command.

http://www.cisco.com/univercd/cc/td/doc/product/multisec/asa_sw/v_70/cref_txt/c.htm#wp1910869

Hope it helps

Franco Zamora

[ronin2307]

is there an equivalent in the GUI?

[joneschw1]

Might be a bit easier to mirror the port that the ASA is on, at the switch level, and then use etherreal. There would be no configuration changes, etc. that you would need to do to the firewall. It would all be at the switch level. If your switch is unmanaged, you could a hub between the switch and the firewall, and then mirror by default on that.