From: gladston@br.ibm.com
Date: Thu Sep 09 2004 - 17:22:13 GMT-3
On Halabi's book, BGP Police Confliting, Using Rip as the IGP, Halabi says that the 0.0.0.0/0 route learned from BGP is automatically advertised into RIP.
It seems the behavior has changed on some IOS version. Any Advice?
r5#sir
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 not set
C 220.1.1.0/24 is directly connected, Loopback21
C 200.1.1.0/24 is directly connected, Loopback20
172.16.0.0/24 is subnetted, 11 subnets
R 172.16.220.0 [120/1] via 172.16.45.4, 00:00:24, Ethernet0
C 172.16.45.0 is directly connected, Ethernet0
R 172.16.34.0 [120/1] via 172.16.35.3, 00:00:19, Ethernet1
C 172.16.35.0 is directly connected, Ethernet1
R 172.16.23.0 [120/1] via 172.16.35.3, 00:00:19, Ethernet1
R 172.16.13.0 [120/1] via 172.16.35.3, 00:00:19, Ethernet1
R 172.16.14.0 [120/1] via 172.16.45.4, 00:00:25, Ethernet0
R 172.16.10.0 [120/1] via 172.16.35.3, 00:00:21, Ethernet1
R 172.16.4.0 [120/1] via 172.16.45.4, 00:00:25, Ethernet0
R 172.16.3.0 [120/1] via 172.16.35.3, 00:00:21, Ethernet1
R 172.16.65.0 [120/1] via 172.16.35.3, 00:00:22, Ethernet1
r5#
r3#sir
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 172.16.23.2 to network 0.0.0.0
172.16.0.0/24 is subnetted, 11 subnets
R 172.16.220.0 [120/2] via 172.16.35.5, 00:00:16, Ethernet0
R 172.16.45.0 [120/1] via 172.16.35.5, 00:00:16, Ethernet0
C 172.16.34.0 is directly connected, Serial0.34
C 172.16.35.0 is directly connected, Ethernet0
C 172.16.23.0 is directly connected, Serial0.32
C 172.16.13.0 is directly connected, Ethernet1
R 172.16.14.0 [120/2] via 172.16.35.5, 00:00:16, Ethernet0
C 172.16.10.0 is directly connected, Loopback12
R 172.16.4.0 [120/2] via 172.16.35.5, 00:00:17, Ethernet0
C 172.16.3.0 is directly connected, Loopback0
C 172.16.65.0 is directly connected, Loopback11
C 192.68.10.0/24 is directly connected, Loopback10
B 193.78.1.0/24 [20/0] via 172.16.23.2, 00:03:06
B* 0.0.0.0/0 [20/0] via 172.16.23.2, 00:03:06
r3#
R3 learns 0.0.0.0 from R2 and is advertising routes to R5, but 0.0.0.0
r3#sh ver
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-JK8OS-L), Version 12.2(1d), RELEASE SOFTWARE (fc1)
This archive was generated by hypermail 2.1.4 : Fri Oct 01 2004 - 15:00:40 GMT-3