Configuration help to split the knowledge

mattia.milani at studenti.unitn.it mattia.milani at studenti.unitn.it
Mon Jul 1 10:30:13 CEST 2019


I will do it as soon as possible in the next few days.

Thanks,
Mattia

> Il giorno 1 lug 2019, alle ore 08:50, Maria Jan Matejka <jan.matejka at nic.cz> ha scritto:
> 
> Hello!
> 
> Thank you for checking this. Please send your proposed changes as a patch
> for the appropripate git repository, https://gitlab.labs.nic.cz/labs/bird.wiki.git
> … or if you are going to draw the figures, also a pull request is OK in this case.
> 
> Thanks!
> Maria
> 
>> On 6/29/19 4:48 PM, Mattia Milani wrote:
>>  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.milani at studenti.unitn.it <mailto:mattia.milani at 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
> 
> 



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