eBGP - Routes Not getting Advertised from our end

Question

Hi All,

Facing issue with Fortigate 90D (v5.2.4,build688) in eBGP route advertisement.

Routes which we advertising locally on eBGP is not reflecting at other end (not getting advertised), However we are properly getting routes from remote end at our end under BgP.

Pls have look on network (IP route) advertised at our end.

Fortigate-UTM # get router info bgp network 192.168.10.100 [style="background-color: #ffff00;"]BGP routing table entry for 0.0.0.0/0[/style] Paths: (1 available, best #1, table Default-IP-Routing-Table) [style="background-color: #ffff00;"]Not advertised to any peer[/style] 4755 65501 10.75.216.117 from 10.75.216.117 (192.168.220.129) Origin incomplete metric 0, localpref 100, valid, external, best Last update: Tue Dec 8 23:33:33 2015

emnoc · Answer

A copy of the router config would be helpful but if your not advertising them, you need to fix your config and/or route table to advertise them. Also in your example and since BGP is a prefix based solution always specify a prefixes when looking at the table

e.g

get router info bgp network 10.10.0.0/8

and not

get router info bgp network 10.10.0.0

A topology map would also be helpful, but I 1st would check your local IGP route table ( get router info routing all ) to validate the route(s) are in the table 1st and then move forward thru your config.

If the cfg looks a execute a bgp clear to restart the peer(s).

e.g

execute route clear bgp ip 1.1.1.1 <---- would be your remote ebgp peer

Ken

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