Date: Mon, 30 Jul 2018 22:05:28 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Tobias Urdin <tobias.urdin@binero.se>, freebsd-net@freebsd.org Subject: Re: ospf redistribute into openbgpd overwrites directly connected routes Message-ID: <5B5F2938.5090103@grosbein.net> In-Reply-To: <9507d752-6815-92fe-924b-55459710bb9d@binero.se> References: <9507d752-6815-92fe-924b-55459710bb9d@binero.se>
next in thread | previous in thread | raw e-mail | index | archive | help
30.07.2018 21:06, Tobias Urdin wrote: > I have a setup where we connect a OSPF area with a edge router, this edge router then has a BGP peer to my router > where it redistributes all OSPF routes into the BGP feed to my router. > > My router is running FreeBSD 11.1 with openbgpd > > root@myrouter:~ # uname -a > FreeBSD dr20-1-sto1 11.1-RELEASE FreeBSD 11.1-RELEASE #0 r321309: Fri Jul 21 02:08:28 UTC 2017 root@releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64 > > root@myrouter:~ # pkg info openbgpd > openbgpd-5.2.20121209_2 > Name : openbgpd > Version : 5.2.20121209_2 > > The thing here is that my router has layer 2 access directly to one of the networks that the edge router BGP announces to my router (172.20.104.0/22). > When my FreeBSD machine boots it will install a directly connected route for 172.20.104.0/22 in my routing table but as soon as openbgpd starts it will > install a 172.20.104.0/22 route with the nexthop of the edge router instead. > > How can I prevent openbgpd from overwriting the directly connected route? > Directly connected networks should never be overwritten by a routing protocol but I suspect this is because of the redistribute. > > I've tried messing with metrics, but maybe I to create a rtable and mess around with that? This problem was fixed in 11.2-RELEASE, just upgrade and you will be fine.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5B5F2938.5090103>