topic Re: Query regarding BFD in Network Security

Query regarding BFD

ankurs2008 — Mon, 11 Mar 2019 17:47:38 GMT

Is BFD (Bidirectional Forwarding Detection) supported in any of the ASA Versions ?

Re: Query regarding BFD

Panos Kampanakis — Tue, 18 May 2010 16:47:19 GMT

I believe BFD works over IP, so opening ACLs should do the trick.

There is no inspection on the ASA for it, that is for sure, but I don't think one will be needed.

I haven't tested, so not 100% sure.

Re: Query regarding BFD

ankurs2008 — Wed, 19 May 2010 10:02:29 GMT

can u please let me know how it is accomplished via ACL.Can you please look at the below URL and confirm whether this feature is really supported on asa ?

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fs_bfd.html

Re: Query regarding BFD

Jon Marshall — Wed, 19 May 2010 10:33:08 GMT

ankurs2008 wrote:
Hi
can u please let me know how it is accomplished via ACL.Can you please look at the below URL and confirm whether this feature is really supported on asa ?
http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fs_bfd.html

Just to clarify. Do you mean can the ASA participate in BFD ie. does it support it ? In which case as far as i know no it doesn't.

If you mean can BFD be used throgh a firewall then yes you should be able to do this. You would need to allow the BFD ports -

bfd-control     Port 3784 TCP        BFD Control Protocol
bfd-control     Port 3784 UDP        BFD Control Protocol
#                                    [RFC-ietf-bfd-v4v6-1hop-10.txt]
bfd-echo        Port 3785 TCP        BFD Echo Protocol 
bfd-echo        Port 3785 UDP        BFD Echo Protocol
#                                    [RFC-ietf-bfd-v4v6-1hop-10.txt]

Jon

Re: Query regarding BFD

ankurs2008 — Wed, 19 May 2010 10:58:41 GMT

thanks , thats what i wanted to know if we can confiure BFD on ASA or not , i believe we can not . Thanks for the help !

Re: Query regarding BFD

Sumanta Ghosh — Sat, 07 Apr 2018 11:01:34 GMT

Hi Experts

BFD is not working in ASA 9.9 running on FPR 9300. Maybe limited or no support?

Tried both single/multi hop BFD template and map.

Regards,

Sumanta Ghosh.

Re: Query regarding BFD

muellerjohn — Thu, 24 Mar 2022 20:14:43 GMT

BFD (Bidirectional Forwarding Detection) is a super-fast protocol that is able to detect link failures within milliseconds or even microseconds... All (routing) protocols have some sort of mechanism to detect link failures. OSPF uses hello packets and a dead interval, EIGRP uses hello packets and a hold-down timer. etc.

For more information plz see https://community.cisco.com/t5/network-security/query-regarding-bfd/td-p/1493452 -apkbik

Hope this reply is useful for you,

Thanks

Re: Query regarding BFD

Tomajupp — Thu, 24 Mar 2022 20:58:42 GMT

Hi, I have bit effort to answer your question.

BFD (Bidirectional Forwarding Detection) is a super fast protocol that is able to detect link failures within milliseconds or even microseconds.. All (routing) protocols have some sort of mechanism to detect link failures. For more detail see https://community.cisco.com/t5/network-security/query-regarding-bfd/td-p/1493452-apkbik

Thanks

Re: Query regarding BFD

teatimeresults40 — Sat, 23 Apr 2022 20:58:45 GMT

Thanks to all for your kind information. I am going to bookmark this thread https://community.cisco.com/t5/network-security/query-regarding-bfd/td-p/1493452 -teatime

Re: Query regarding BFD

airekoth — Thu, 28 Jul 2022 06:19:10 GMT

I totally agreed with your answer my problem is solved. I am very happy.

Have a nice day to all.

Re: Query regarding BFD

airekoth — Thu, 28 Jul 2022 06:22:36 GMT