Aggregate outgoing address.

damkol at gmail.com damkol at gmail.com
Wed Nov 16 12:35:13 CET 2011


2011/11/16 Alexander Shikoff <minotaur at crete.org.ua>

> Firstly, the term "announce" usually applies to BGP, but I cannot see
> anny configuration related to BGP.
>
> Secondly, every route being announced via BGP should be confirmed with some
> IGP protocol, for example, static. Thus if you have no 11.11.11.0/24
> in IGP then 11.11.11.0/24 will not be announced via BGP. It seems
> you do not have 11.11.11.0/24 in IGP.
>
> Thirdly, if you want to announce only two /24 networks then make a
> outbound BGP filter and include them into it.
>
>
I omitted bgp configuration and filters because it is not my problem.
Outgoing filtr is:
#+
function net_local() { return net ~ [ 11.11.11.0/24+, 12.12.12.0/24+ ]; }

function rt_export() {
if proto = "static_bgp" then return true;
if source != RTS_BGP then return false;
if net_martian() then return false;
if bgp_path.len > 45 then return false;
return bgp_path.first ~ [ 111 ];
}

filter bgp_out_222 { if net_local() then accept; else reject;
if ! rt_export() then reject; accept; }
#v-

I dont know how to announce two /24 to test-peer AS222

-- 
damkol at gmail.com
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