show mac-address-table not working on cisco asa 5505

Answered Question
Apr 27th, 2010

Hi, I have tried command show mac-address-table on Cisco ASA 5505 and Cisco ASA 5520. Output was ERROR: % unrecognized command.

How is that possible? Is there a new command?

More exactly, Cisco ASA 5505 with IOS ASA822-k8.bin.

I have this problem too.
0 votes
Correct Answer by davwalsh about 6 years 4 months ago

Thanks for the link.  I see that the command is supported in transparent mode only but I think I found a way to make this work in routed mode (which is what I have mine in) on the ASA 5505:

x-asa# show switch mac-address-table

Legend: Age - entry expiration time in seconds

        Mac Address  | VLAN |       Type       | Age | Port

-------------------------------------------------------

000X.XXXa.XXXe | 0001 |     dynamic      | 287 | Et0/2

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Overall Rating: 5 (4 ratings)
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pugglewuggle Thu, 05/06/2010 - 22:22

Weird, I'm having the same problem and I don't think I've ever had it before.

I'm running, in enable mode, this command:

show mac-address-table

The output I get is:

ASA5505# sh mac-address-table

                     ^

ERROR: % Invalid input detected at '^' marker.

What the heck? Is this some kind of bug?
I'm running 8.3.1
Please let me know!
davwalsh Wed, 07/28/2010 - 17:46

Did you ever find out why this is.  I am running asa821-k8.bin on a 5505 and I get the following:

x-asa# show mac-address-table

                           ^

ERROR: % Invalid input detected at '^' marker.

Correct Answer
davwalsh Wed, 07/28/2010 - 19:29

Thanks for the link.  I see that the command is supported in transparent mode only but I think I found a way to make this work in routed mode (which is what I have mine in) on the ASA 5505:

x-asa# show switch mac-address-table

Legend: Age - entry expiration time in seconds

        Mac Address  | VLAN |       Type       | Age | Port

-------------------------------------------------------

000X.XXXa.XXXe | 0001 |     dynamic      | 287 | Et0/2

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