Cisco ASA Commands

Overview

This is a quick reference on performing certain command steps on the Cisco ASA X series that I use at home and work

Variable Names

I use the following variable names in my examples:

capName
Capture name as a text string
fileName
A file name on the flash file system
iFaceName
Interface name such as inside, outside, management
ip4Addr
IPv4 address
ip6Addr
IPv6 address
net4Mask
IPv4 netmask
net6Mask
IPv6 netmask

Packet Capture for IPv4 Traffic

Setup the capture
capture capName interface iFaceName match ip ip4Addr net4Mask any
Display the capture
show capture capName
Save the detail capture to a file in ASCII format
show capture capName detail | redirect fileName
Save the capture to a file in PCAP format
copy /pcap capture:capName fileName
Stop and delete the capture
no capture capName
Clear the capture buffer
clear capture capName
Clear all capture buffers
clear capture /all