From: Michael Stout (michaelgstout@hotmail.com)
Date: Fri Dec 30 2005 - 13:27:28 GMT-3
If you are running iBGP between MyRouter1 and MyRouter2, Perhaps, you
should add the command 'nei 17.11.25.12 next-hop-self' and add the same
command on the other side.
I think you are trying to advertise your class-A as a class-B. Maybe you
sould use network 17.11.0.0 mask 255.255.0.0
If you are running iBGP, you are actually connecting MyRouter2 to ISP1,
because BGP makes connections using AS's.
--------------------------------------------------------------------
From: "supernet" <supernet@comcast.net>
Reply-To: "supernet" <supernet@comcast.net>
To: <ccielab@groupstudy.com>, <cisco@groupstudy.com>
Subject: BGP question
Date: Thu, 29 Dec 2005 21:04:39 -0800
I have 2 routers connect to 2 ISPs:
ISP1 router--------My router1------My router2---------ISP2 router
My router1 configuration:
router bgp 11111
no synchronization
no bgp log-neighbor-changes
network 17.11.0.0
neighbor 69.231.141.153 remote-as 12345
neighbor 17.11.25.11 remote-as 11111
no auto-summary
My router2 configuration:
router bgp 22222
no synchronization
no bgp log-neighbor-changes
network 17.11.0.0
neighbor 167.13.192.145 remote-as 54321
neighbor 17.11.25.12 remote-as 22222
no auto-summary
I noticed my router2 routing table keeps changing and caused
connectivity
problems. It sometimes gets routes from ISP1 router. How does it
happen? My
router2 does not have direct session with ISP1 router. Anyone can
help me?
Here is part of the routing table on my router2:
B 217.170.115.0/24 [20/0] via 167.13.192.145, 2w1d
B 216.221.5.0/24 [20/0] via 167.13.192.145, 1w1d
B 210.51.225.0/24 [20/0] via 167.13.192.145, 2w1d
B 209.136.89.0/24 [20/0] via 167.13.192.145, 2w1d
B 209.34.243.0/24 [20/0] via 167.13.192.145, 2w1d
B 205.204.1.0/24 [20/0] via 167.13.192.145, 6d23h
B 204.255.51.0/24 [20/0] via 167.13.192.145, 2w1d
B 204.238.34.0/24 [20/0] via 167.13.192.145, 2d14h
B 204.221.17.0/24 [20/0] via 167.13.192.145, 2w1d
B 204.17.221.0/24 [20/0] via 167.13.192.145, 2w1d
B 203.238.37.0/24 [20/0] via 167.13.192.145, 2w1d
B 203.34.233.0/24 [200/0] via 69.231.141.154, 00:00:43 (why
this???)
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