iBGP - Simple static route exchange
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 (10.10.1.1) :
> bird> show route all for 192.168.1.0/24
> 192.168.1.0/24 dev eth1 [direct1 13:44:52] * (240)
> Type: device unicast univ
> via 10.10.1.1 on eth0 [static1 13:44:52] (200)
> Type: static unicast univ
This is a cause of your problems - you have 192.168.1.0/24 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 = 192.168.1.0/24' 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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