Solved adapting the configuration help found at the following link:
https://gitlab.labs.nic.cz/labs/bird/wikis/BGP_filtering
This is an excellent configuration explanation, but without figures of the
network it's a little bit tricky to read, if possible I may suggest to
update the guide with a figure of the network and a figure of the message
exchange propagation (clients to everyone and peers to clients ecc)
The first time I tried to implement the code of the guide I got an error in
a function because it seems that the name "asn" is reserved, when I tried
to start a node with "asn" like parameter of the function I got a syntax
error.
Solved swapping "asn" with another name.
Thanks,
Mattia
Il giorno ven 28 giu 2019 alle ore 18:42 Mattia Milani <
mattia.mil...@studenti.unitn.it> ha scritto:
> Hello bird community, I have a little problem with some configuration
> files in Bird 2.0
>
> The protocol I use is BGP
>
> I have a star network with 5 nodes, one in the center with the 4 edges.
> It's something like this (I'm not sure you will see it correctly):
>
> H1
> |
> H2--H0--H3
> |
> H4
>
> Now H1,H2,H3, and H4 will share a network, a basic /24 network, and H0
> should share them with these rules:
> If the network comes from H2 I share it with H1 and the opposite
> If the network comes from H3 I share it with H4 and the opposite
>
> For this reason, I created this configuration for the H1-H0 link:
>
> protocol bgp h_0_h_1 {
> local 10.0.0.1 as 1;
> neighbor 10.0.0.2 as 2;
> ipv4{
> import filter bgp_in;
> export where proto = "h_0_h_2";
> };
> direct;
> }
>
> Obviously, the protocol "h_0_h_2" is the protocol between H0 and H2 that
> is the same with little differences in addresses and in the export, where
> proto = "h_0_h_1".
>
> I don't think this is the correct way to handle this situation, could you
> please suggest any other configurations?
>
> Thanks a lot for the help,
> Mattia
>
> --
> Mattia Milani
>
--
Mattia Milani
