Question Verification regarding UDP port of BFD

[Irene Lalioti]

Hallo Johannes!

Villdank. I found that in the official bird documentation ya. We will 
see to do that..

Irene

On 10/10/2023 12:20, Johannes Moos via Bird-users wrote:
>
> Hi Irene,
>
> You can adjust the linux source port range in 
> /proc/sys/net/ipv4/ip_local_port_rangeto be IANA compliant.
>
> “BFD packets are sent with a dynamic source port number. Linux systems 
> use by default a bit different dynamic port range than the IANA 
> approved one (49152-65535). If you experience problems with 
> compatibility, please adjust /proc/sys/net/ipv4/ip_local_port_range.”
>
> (from https://bird.network.cz/?get_doc&v=20&f=bird.html#toc6.3 
> <https://bird.network.cz/?get_doc&v=20&f=bird.html#toc6.3>)
>
> HTH!
>
> Johannes
>
> *From: *Bird-users <bird-users-bounces at network.cz> on behalf of Irene 
> Lalioti <irene.lalioti at restena.lu>
> *Date: *Tuesday, 10. October 2023 at 11:20
> *To: *Maria Matějka <maria.matejka at nic.cz>, BIRD Users 
> <bird-users at network.cz>, Marian Rychtecky <mr at nix.cz>
> *Subject: *Question Verification regarding UDP port of BFD
>
> Hello dear Maria, Marian, and BIrd community,
>
>
> I would like to ask you your feedback regarding an issue a member of 
> us has indicated. That member has stumbled upon a non-RFC compliant 
> BFD source port with result their CISCO router to drop the BFD packets.
> Is it that Bird does not or does change the code to use a different 
> source port? We would need to see how to workaround this issue.
>
> Předem moc děkuji!!
> Hesky den!
> Irene
>
>
>
>
> -- 
> Irene Lalioti
> Network Engineer
> Fondation RESTENA
> 2, avenue de l'Université
> L-4365 Esch/Alzette
> Tel: +352 424409 1
> Fax: +352 422473
> This email may contain information for limited distribution only, please treat accordingly.

-- 
Irene Lalioti
Network Engineer
Fondation RESTENA
2, avenue de l'Université
L-4365 Esch/Alzette

Tel: +352 424409 1
Fax: +352 422473

This email may contain information for limited distribution only, please treat accordingly.
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