I'm tryng to get some practice with WAN protocols. At home I have 2 routers. They are connected via a back to back serial cable (PPP encapsulation). After reading my Cisco book, it appears as if you can configure passwords in between the routers.
I have a few questions
1. Would two routers ever be connected using PPP in the real world?? When?
2. When would you use authentication (ie: pap or chap) on a PPP link?
3. Unrelated: Is it possible to practice configuring your routers for frame? I have two 2501s and a 2600 router.