I solved the below. Was fun :) The task is 100% correct
This is a 2 point task
The original task is: - Ensure that reachability to R1's Loopback0 interface is mantained
I can't see why I have to do something special to ensure R1's Loopback reachability if this is no issue.
Looking at R4 and SW4 I see no reachability issue with R1's loopback address. Please explain.
RSRack1R5#show ip route 150.1.1.1
Routing entry for 150.1.0.0/16
Known via "ospf 10", distance 110, metric 400, type extern 2, forward metric 64
Redistributing via rip
Advertised by rip metric 5
Last update from 140.1.245.4 on Serial0/0, 00:38:57 ago
Routing Descriptor Blocks:
* 140.1.245.4, from 150.1.4.4, 00:38:57 ago, via Serial0/0
Route metric is 400, traffic share count is 1
RSRack1R5#
RSRack1SW4#show ip route 150.1.1.1
Routing entry for 150.1.0.0/16
Known via "ospf 10", distance 110, metric 400, type extern 2, forward metric 67
Last update from 140.1.0.129 on Port-channel34, 00:40:11 ago
Routing Descriptor Blocks:
* 140.1.0.129, from 150.1.4.4, 00:40:11 ago, via Port-channel34
Route metric is 400, traffic share count is 1
RSRack1SW4#