<div dir="ltr"><div>all external interface of the peer belong to the same network, and the address of the network is <a href="http://10.0.0.0/8">10.0.0.0/8</a> that is unic.<br><br></div><div>sorry for the network picture, i noted after had sended the email that it get mangled.<br></div><div>now i try to explain it more clearly<br><br></div><div>H0 belong to AS2 and have the interface eth1 with the address <a href="http://10.0.0.1/8">10.0.0.1/8</a> and it is connected with H1<br></div><div>H1 belong to AS4 and have two interfaces:<br></div><div> -eth1 with the address <a href="http://10.0.1.1/8">10.0.1.1/8</a> that is connected with H0.eth1<br></div><div> -eth2 with the address <a href="http://10.0.1.2/8">10.0.1.2/8</a> that is connected with H2.eth2<br></div><div>H2 belong to AS3 and have two interfaces:<br><div> -eth1 with the address <a href="http://10.0.2.1/8">10.0.2.1/8</a> that is connected with H3.eth1<br></div><div> -eth2 with the address <a href="http://10.0.2.2/8">10.0.2.2/8</a> that is connected with H1.eth2<br></div><div>H3 belong to AS1 and have the interface eth1 with the address <a href="http://10.0.3.1/8">10.0.3.1/8</a> and it is connected with H2<br><br></div><div>i hope that this way to explain the network is more clearly<br></div><div><br></div><div>every interace is on the same network address so do you mean that every bgp session between two peer need to have different network address?<br></div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2018-03-07 17:01 GMT+01:00 Ondrej Zajicek <span dir="ltr"><<a href="mailto:santiago@crfreenet.org" target="_blank">santiago@crfreenet.org</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Wed, Mar 07, 2018 at 04:45:55PM +0100, Mattia Milani wrote:<br>
> yeah they are a /8, so bird doesn't support /8?<br>
> now i'll try to modify them.<br>
><br>
> but sorry, why bird doesn't support /8?<br>
<br>
</span>BIRD of course supports /8 (and any other prefix lengths), but your<br>
network setup have more networks with the same network prefix<br>
(<a href="http://10.0.0.0/8" rel="noreferrer" target="_blank">10.0.0.0/8</a>), if i understand your network picture correctly (it get<br>
mangled in mail). Such network setup is not generally correct.<br>
<div class="HOEnZb"><div class="h5"><br>
--<br>
Elen sila lumenn' omentielvo<br>
<br>
Ondrej 'Santiago' Zajicek (email: <a href="mailto:santiago@crfreenet.org">santiago@crfreenet.org</a>)<br>
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, <a href="http://wwwkeys.pgp.net" rel="noreferrer" target="_blank">wwwkeys.pgp.net</a>)<br>
"To err is human -- to blame it on a computer is even more so."<br>
</div></div></blockquote></div><br></div>