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Okay, it seams that I figured out something quiet important.</div>
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So on my bond0 (which is the uplink to the firewall vlan) on the bird bgp box I have a.b.c.249/29 configured. My first fw has a.b.c.252/29 second fw .53/29 and CARP VIP is .54/29. Now I dont have to route a b.c.0/22 to my transfer net ip... I have to route
it to my firewall ip or even better of course to my carp vip. Now I see all traffic coming to the fw cluster :)</div>
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Now the only issue left is the sync between my two bgp boxes...</div>
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Maybe someone could point me in the right direction :)</div>
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I have two bird bgp pizzas a.b.c.249/29 and .250/29 so I think I just make a new bgp link between them?</div>
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Thanks for your help</div>
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Best Regards</div>
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Yves</div>
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<div id="x_from"><b>From:</b> mail@yvesilli.com</div>
<div id="x_sent"><b>Sent:</b> 21 May 2019 13:08</div>
<div id="x_to"><b>To:</b> santiago@crfreenet.org</div>
<div id="x_cc"><b>Cc:</b> bird-users@network.cz</div>
<div id="x_subject"><b>Subject:</b> AW: Simple two bird BGPs two Uplinks one Peering Provider config</div>
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<div class="PlainText">Hi,<br>
<br>
Okay, I think there is a misunderstanding. Or maybe I am totally wrong. Please correct me if I am.<br>
<br>
a.b.c.0/22 is my range<br>
<br>
d.e.f.124 is my bgp01 public ip of the /29 transfer net between my bgp01 and the big router (d.e.f.121/29) of my peering uplink<br>
<br>
So if I want to advertise my own public ips (a.b.c.0/22) to my peering uplink (so called to the internet) shouldn't I make it like this:<br>
<br>
protocol static static_bgp {<br>
ipv4;<br>
route a.b.c.0/22 via d.e.f.124;<br>
}<br>
protocol bgp link1 {<br>
local d.e.f.124 as XXXX;<br>
neighbor d.e.f.121 as YYYY; #d.e.f.121 is the first router of my peering uplink 1<br>
ipv4 { import all;export where proto = "static_bgp"; };<br>
}<br>
<br>
I want to import all from them so I know the internet and how to route.... and I want to export stat-ic_bgp so the internet know's me?<br>
<br>
Thanks for your help<br>
Yves<br>
<br>
-----Ursprüngliche Nachricht-----<br>
Von: Ondrej Zajicek <santiago@crfreenet.org> <br>
Gesendet: Montag, 20. Mai 2019 20:43<br>
An: Yves Illi <mail@yvesilli.com><br>
Cc: bird-users@network.cz<br>
Betreff: Re: Simple two bird BGPs two Uplinks one Peering Provider config<br>
<br>
On Mon, May 20, 2019 at 05:17:08PM +0000, Yves Illi wrote:<br>
> Hi there,<br>
> <br>
> I am really new to the complete topic of BGP. So please have a bit mercy with me if I ask something very stupid. But I am trying to build that for the first time ever and I am feeling like a donkey in front of a big mountain.<br>
> <br>
> Last but not least it is currently running, but I guess its more luck than something else. Like I said I am completely new to the topic of BGP. What I don't get is how I configure them together so they work (as a HA-Cluster) and currently I can only route
a.b.c.249/29 instead of a.b.c.0/22.<br>
<br>
Hi<br>
<br>
> protocol static static_bgp {<br>
> ipv4;<br>
> route a.b.c.0/22 via d.e.f.124;<br>
> }<br>
<br>
I think this is the problem, as d.e.f.124 is your local address, then this route is probably not allowed locally (because you should not have route directing to a local address) and therefore likely not propagated to BGP.<br>
<br>
Simple solution is to have the static route defined as unreachable route:<br>
<br>
route a.b.c.0/22 unreachable;<br>
<br>
You would have more specific routes in the routing table anyways and when the unreachable route is propagated by BGP, the local address will be attached as next hop automatically.<br>
<br>
--<br>
Elen sila lumenn' omentielvo<br>
<br>
Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."<br>
<br>
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