iBGP - Simple static route exchange

Ondrej Zajicek santiago at crfreenet.org
Sun Mar 5 16:16:02 CET 2017

On Sun, Mar 05, 2017 at 01:51:10PM +0100, Cedric Lemarchand wrote:
> On host1 ( :
> bird> show route all for
>     dev eth1 [direct1 13:44:52] * (240)
>         Type: device unicast univ
>                    via on eth0 [static1 13:44:52] (200)
>         Type: static unicast univ


This is a cause of your problems - you have as both direct
route and indirect route from static protocol. Because the direct route
has higher priority (240), it is selected, but your BGP export filter is
set to 'where proto = “static1"', is the direct route is rejected, while
the static route is ignored due to being shadowed by the direct one.

You could use just 'export where net =' as BGP export
filter or you could clean up your network setup to avoid overlapping
direct and indirect routes.

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."
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