From: Lachlan_Kidd@xxxxxxxxxxxx
Date: Fri Aug 04 2000 - 02:11:59 GMT-3
Hi John,
At a guess (and without seeing configs, it's hard to know <grin>),
your pings to 137.20.20.1 may fail because they are leaving the router with
the IP address of the interface. The update source of your BGP may be the
loopback (if you configured it as such), which may have a route to
137.20.20.1. Try an extended ping using the source address of Lo0 and see
if that works.
I may be completely off the mark.
Regards.
Lachlan
"John
Conzone" To: "ccielab" <ccielab@groupstudy.
com>
<jkconzone@ho cc:
me.com> Subject: Whats wrong with this pic
ture (Sho ip BGP and Sho ip
Sent by: route)
nobody@groups
tudy.com
04/08/00
10:11 AM
Please
respond to
"John
Conzone"
Please take a look at the following "sho ip bgp" and "sho ip route" and
tell me what is wrong with this picture, and why this is happening?
According to page 149 of Halabi's book, this shouldn't be.
(Hint: R1 can't ping 137.20.20.1)
r1#sho ip bgp
BGP table version is 2, local router ID is 200.200.200.1
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i192.168.60.0 137.20.20.1 20 100 0 1 i
r1#sho ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter
area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is 24.2.28.1 to network 0.0.0.0
C 200.200.200.0/24 is directly connected, Loopback0
B 192.168.60.0/24 [200/20] via 137.20.20.1, 00:05:08
172.168.0.0/24 is subnetted, 1 subnets
C 172.168.21.0 is directly connected, Serial0
24.0.0.0/24 is subnetted, 1 subnets
C 24.2.28.0 is directly connected, Ethernet0
C 192.168.17.0/24 is directly connected, Serial1
S* 0.0.0.0/0 [1/0] via 24.2.28.1
r1#
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