Correct way to advertise network in BIRD 2.x
Laura Smith
n5d9xq3ti233xiyif2vp at protonmail.ch
Mon Apr 27 12:45:09 CEST 2020
Thanks James. Will try that.
‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Monday, 27 April 2020 11:25, James Swineson <bird-users at public.swineson.me> wrote:
> Just use something like:
>
> protocol static {
> ipv4;
> route 192.168.1.0/24 unreachable;
> }
>
> You don't really need a valid next-hop if you are only importing static routes to eBGP since eBGP will overwrite next-hop to yourself.
>
> On Mon, Apr 27, 2020, at 10:15, Laura Smith wrote:
>
> > Hi,
> > I am unfortunatley finding the docs a little terse in terms of lack of
> > real-life examples.
> > I have a simple question, how do I advertise networks to my peers ? I
> > am guessing the syntax below is not correct because I see error
> > messages such as
> > "Apr 27 11:08:53 vpw bird: KRT: Received route 192.0.2.224/28 with
> > strange next-hop 198.51.100.33" in my logs.
> > 2a01:db8:a1d:1e11::1111 / 198.51.100.33 is the IP of the interface
> > facing the upstream BGP peer.
> > protocol static {
> > ipv4;
> > route 192.0.2.224/28 via 198.51.100.33;
> > }
> > protocol static {
> > ipv6;
> > route 2a01:db8:6a66::/48 via 2a01:db8:a1d:1e11::1111;
> > }
> > filter out_filter {
> > if net ~ 2a01:db8:6a66::/48 then accept;
> > if net ~ 192.0.2.224/28 then accept;
> > else reject;
> > }
> > protocol bgp v4n1 {
> > local as 65200;
> > source address 198.51.100.33;
> > neighbor 198.51.100.250 as 64515;
> > med metric on;
> > default bgp_med 0;
> > ipv4 {
> > import all;
> > export filter out_filter;
> > graceful restart on;
> > };
> > }
> > protocol bgp v6n1 {
> > local as 65200;
> > source address 2a01:db8:a1d:1e11::1111;
> > neighbor 2a01:db8:a1d:1e11::2222 as 64515;
> > med metric on;
> > default bgp_med 0;
> > ipv6 {
> > import all;
> > export filter out_filter;
> > graceful restart on;
> > };
> > }
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