show mac-address-table on ASA 5540 ver8.2(2)

[r.overberg]

according to documenatation, show mac-address-table should be valid EXEC mode command.

what am I doing wrong?

isdevfw00# show ver | inc Version
Cisco Adaptive Security Appliance Software Version 8.2(2)
Device Manager Version 6.3(1)

isdevfw00# show mac?
ERROR: % Unrecognized command
isdevfw00# show mac

[Jason Masker · Accepted solution]

In routed mode, the command 'show arp' will display Interface, IP, MAC and age for known IP addresses. Perhaps this table will give you the information you need.

[r.overberg]

yes, I guess it's a "feature"   I thought I was going crazy.

[wromsait · Accepted solution]

Hello,

The show mac-address-table command will only work in the Transparent firewall.

You can take a look at the command reference here. You will notice the bullet is only under transparent.

http://www.cisco.com/en/US/docs/security/asa/asa80/command/reference/s4.html#wp1448364

You can do "show firewall"  to see if the firewall is in routed mode or transparent.

Hope this helps.

Wasan