iBGP unreachable

Panda RoboLegs pandawithrobotlegs at outlook.com
Mon Apr 11 18:01:50 CEST 2016



With "direct" in the BGP configuration the protocoll won't come up
With "gateway direct" Bird won't start "Multihop BGP cannot use direct gateway mode"
"gateway recursive" won't differ from the original behaviour

Date: Mon, 11 Apr 2016 20:43:13 +0500
From: oleynikov_v at ufanet.ru
To: pandawithrobotlegs at outlook.com
CC: bird-users at network.cz
Subject: Re: iBGP unreachable


Re: iBGP unreachable






Hello




You can try using "direct" and "direct gateway" commands in peer coniguration.

Sometimes it helps.




WBR, duckhawk




Вы писали 11 апреля 2016 г., 20:13:22:










Hello,

I am new to Bird and I am trying to set up a Looking-Glass.




I have configured a iBGP-Session with a route-reflector to gather the needed routes.




When I do a "show route". Every route I got via BGP is unreachable.




xxx.xxx.xxx.xxx/24 unreachable [bgp_v4 13:32:40 from xxx.xxx.xxx.xxx] * (100/-) [ASxxxxxxi]










The Log will give me the following:




2016-04-10 13:32:44 <WARN> Next hop address xxx.xxx.xxx.xxx resolvable through recursive route for xxx.xxx.xxx.xxx/24










When I add a static route via Bird for the unreachable prefix to the next hop the route is resolvable.

route xxx.xxx.xxx.xxx/32 via xxx.xxx.xxx.xxx




A static default gateway won't do the trick (route 0.0.0.0/0 via xxx.xxx.xxx.xxx;). the routes are still unreachable.




Is there any posibility to solve ths problem without adding an IGP or a static route to every next hop?










Best regards, Marius 




 		 	   		   		 	   		  
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