BFD multihop with Junos

[Arzhel Younsi]

Thanks for your reply Ondrej,

I changed the port range as suggested, confirmed that BFD packets were leaving from a correct port, but the BFD session still stays down.

-- 
Arzhel

On Tue, Mar 5, 2019, at 19:32, Ondrej Zajicek wrote:
> On Tue, Mar 05, 2019 at 05:21:44PM -0500, Arzhel Younsi wrote:
> > Hi,
> > 
> > I'm trying to setup BFD multihop session between Bird 1.6.3 and a Juniper MX router to fast failover eBGP multihop sessions.
> 
> Hi
> 
> I guess this could be strict src port checking in Juniper, see
> https://bird.network.cz/?get_doc&v=16&f=bird-6.html#ss6.2 :
> 
>   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
> 
> And also: https://bird.network.cz/pipermail/bird-users/2015-August/009846.html
> 
> -- 
> Elen sila lumenn' omentielvo
> 
> Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
> OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
> "To err is human -- to blame it on a computer is even more so."
>