Mock Lab 4 - Task 1.6 Alternate Solution
* Configure PPP on the serial connection between R4 and R5
* Do not apply the IP address directly to R4's Serial interface.
* Do not use ip unnumbered or Ethernet bridging to accomplish this task
* Preserve IP routing across the Serial link with your solution
For this task I configured R5 to assign an IP address to R4 via IPCP and I configured RIP on R4 to not verify the update-source.
As far as I can tell, it's in within the guidlines for the task.
I just finished the lab so I'm waiting to see how it's marked.