From: Joseph Brunner (joe@affirmedsystems.com)
Date: Sun Nov 11 2007 - 01:38:53 ART
From my own personal lab testing of the doc cd;
Task:
Router6 should advertise a rip default route ONLY to Switch1 and ONLY if
either 150.1.1.0/24 or 150.1.3.0/24 exist in the routing table.
rack1r6#sh run | b router rip
router rip
version 2
network 1.0.0.0
network 150.1.0.0
default-information originate route-map BBNETSCHECK
no auto-summary
route-map BBNETSCHECK permit 10
match ip address 10
set interface FastEthernet0/0
!
route-map BBNETSCHECK permit 20
match ip address 20
set interface FastEthernet0/0
access-list 10 permit 150.1.1.0 0.0.0.255
access-list 20 permit 150.1.3.0 0.0.0.255
Verification;
(see if the route is now on sw1)
rack1sw1#sh ip route 0.0.0.0
Routing entry for 0.0.0.0/0, supernet
Known via "rip", distance 120, metric 1, candidate default path
Redistributing via ospf 1, rip
Last update from 1.1.16.6 on GigabitEthernet0/6, 00:00:02 ago
Routing Descriptor Blocks:
* 1.1.16.6, from 1.1.16.6, 00:00:02 ago, via GigabitEthernet0/6
Route metric is 1, traffic share count is 1
Verification
rack1r6(config)#int f0/1
rack1r6(config-if)#shut
rack1r6#sh ip route 150.1.1.0
% Subnet not in table
(back on sw1, wait more than 30 seconds to be safe)
rack1sw1#sh ip route 0.0.0.0
Routing entry for 0.0.0.0/0, supernet
Known via "rip", distance 120, metric 1, candidate default path
Redistributing via ospf 1, rip
Last update from 1.1.16.6 on GigabitEthernet0/6, 00:00:18 ago
Routing Descriptor Blocks:
* 1.1.16.6, from 1.1.16.6, 00:00:18 ago, via GigabitEthernet0/6
Route metric is 1, traffic share count is 1
(now shutdown the last interface towards BB3, 150.1.3.0/24 on router 6)
rack1r6(config)#int s0/0
rack1r6(config-if)#shut
rack1r6(config-if)#^Z
rack1r6#sh ip route 150.1.3.0
% Network not in table
(Check on switch1; wait a while, past invalid then flush timer)
rack1sw1#sh ip route 0.0.0.0
Routing entry for 0.0.0.0/0, supernet
Known via "rip", distance 120, metric 1, candidate default path
Redistributing via ospf 1, rip
Last update from 1.1.16.6 on GigabitEthernet0/6, 00:02:58 ago
Routing Descriptor Blocks:
* 1.1.16.6, from 1.1.16.6, 00:02:58 ago, via GigabitEthernet0/6
Route metric is 1, traffic share count is 1
rack1sw1#sh ip route 0.0.0.0
Routing entry for 0.0.0.0/0, supernet
Known via "rip", distance 120, metric 4294967295 (inaccessible), candidate
default path
Redistributing via ospf 1, rip
Last update from 1.1.16.6 on GigabitEthernet0/6, 00:03:02 ago
Hold down timer expires in 0 secs
(Gone)
rack1sw1#sh ip route 0.0.0.0
% Network not in table
This archive was generated by hypermail 2.1.4 : Sat Dec 01 2007 - 06:37:29 ART