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Jay Johnston
Cisco Employee
Cisco Employee

Episode Information


Episode Name: Episode 1 - Using the ASA Packet Capture Utility for Troubleshooting

Contributors: Jay Johnston, Blayne Dreier, David White Jr., Magnus Mortensen

Posting Date: May 29th, 2009

Description: In this episode, Cisco TAC engineers discuss the new RSS feed for customer issues currently being seen in the TAC. Learn how to resolve connectivity issues using the packet capture utility built in to the Cisco Adaptive Security Appliance (ASA), PIX Firewall, and Firewall Services Module (FWSM)platforms.



Listen Now    (MP3 53.8 MB; 39:12 mins)



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Episode Show Notes



The following example shows the use of the 'match' argument with packet captures:


ciscoasa# capture in interface inside buffer 2000000

ciscoasa# capture in match ip any host


ciscoasa# capture out interface outside buffer 2000000

ciscoasa# capture out match ip any host


ciscoasa# show capture capture in type raw-data buffer 2000000

interface inside buffer 2000000 interface inside [Capturing - 586 bytes]


match ip any host


capture out type raw-data buffer 2000000 interface GAT_outside [Capturing - 922 bytes]


match ip any host



ciscoasa# show cap in

ciscoasa# show cap in


6 packets captured


1: 12:04:06.482625 > icmp: echo request

2: 12:04:06.482915 > icmp: echo reply

3: 12:04:07.478216 > icmp: echo request

4: 12:04:07.478307 > icmp: echo reply

5: 12:04:08.478139 > icmp: echo request

6: 12:04:08.478231 > icmp: echo reply




About the Cisco TAC Security Podcast


The Cisco TAC Security Podcast Series is created by Cisco TAC engineers. Each episode provides an in-depth technical discussion of Cisco product security features, with emphasis on troubleshooting.


Complete episode listing and show information


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