Cant get switch to see BPDU'S via asa firewall

Unanswered Question
Mar 15th, 2007

Hi all, can someone help. I have a setup, using a asa in transparent mode, switch A goes into inside of asa, then switch 2 plugs into outside of ASA, I have created an allow all rule, BUT i cant see the bpdu's coming through to the other switch, can anyone please help?



I have this problem too.
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Amit Singh Thu, 03/15/2007 - 10:17


Configure the following on your ASA:

hostname(config)# access-list ETHER ethertype permit bpdu

hostname(config)# access-group ETHER in interface inside

hostname(config)# access-group ETHER in interface outside

HTH,Please rate if it does.

-amit singh

adimakmur Mon, 09/17/2007 - 19:25

Hi Carl,

Can you share your experience how you solve the bpdu issue on the ASA?

Right now, I'm having the same problem. I have tried using the Ethertype access-list to allow the bpdu, but still cannot. The hit-count on the access-list is not increased.

Thanks a lot for your help.




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