BGP peer establishment

From: Volkov, Dmitry (IDS Canada) (dmitry_volkov@ca.ml.com)
Date: Thu Jul 03 2003 - 19:22:12 GMT-3


R5(172.50.50.5)---------(.1)pix(.10)--------(172.50.10.1)R1

R5 can ping R1; R5 uses default route to reach R1. R5 can not establish BGP
peering with R1
until I put static route - more specific than 0.0.0.0 0.0.0.0 - WHY ?

r5#sh ip bgp sum
BGP router identifier 60.5.5.5, local AS number 55
BGP table version is 1, main routing table version 1

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down
State/PfxRcd
172.50.10.1 4 65 0 0 0 0 0 never Active

r5#sh ip ro
<snip>
R* 0.0.0.0/0 [120/1] via 172.50.50.1, 00:00:06, FastEthernet0/0

r5#conf t
Enter configuration commands, one per line. End with CNTL/Z.
r5(config)#ip route 172.50.10.1 255.255.255.255 172.50.50.1

00:55:02: %BGP-5-ADJCHANGE: neighbor 172.50.10.1 Up bgp ev

r5#sh ip bgp sum
BGP router identifier 60.5.5.5, local AS number 55
BGP table version is 1, main routing table version 1

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down
State/PfxRcd
172.50.10.1 4 65 5 5 1 0 0 00:02:01 0
r5# sh ip ro
<snip>

S 172.50.10.1/32 [1/0] via 172.50.50.1
R* 0.0.0.0/0 [120/1] via 172.50.50.1, 00:00:13, FastEthernet0/0

r5#
router bgp 55
 bgp log-neighbor-changes
 neighbor 172.50.10.1 remote-as 65
 neighbor 172.50.10.1 ebgp-multihop 2
r1#
router bgp 65
 bgp log-neighbor-changes
 neighbor 172.50.50.5 remote-as 55
 neighbor 172.50.50.5 ebgp-multihop 2

Thank You,

Dmitry Volkov
CCIE # 10292



This archive was generated by hypermail 2.1.4 : Wed Aug 06 2003 - 06:52:22 GMT-3