Networking 201

Copyright Priscilla Oppenheimer

Lab 8 Point-to-Point Protocol (PPP) on Cisco Routers

Scenario

You are a WAN engineer who has decided to convert the corporate WAN networks from HDLC to PPP with CHAP authentication.

Steps

  1. Enter the show run command to learn your hostname so that you can give that information to your partner router engineer. (Note that your hostname is usually used for your prompt so you probably didn't really need to enter the show run command.)
  2. Go into configuration mode with the config t command.
  3. Configure a username and password for your partner router with the username command. Use the question mark to determine the command syntax. The username must match your partner's hostname. You must both use the same password. Usernames and passwords are case-senstive.
  4. Enter serial interface configuration mode with the interface serial command and the correct interface number (s0/0 or s0 for example).
  5. Configure the encapsulation for your serial interface for PPP with the encapsulation ppp command.
  6. Configure PPP to use CHAP with the ppp authentication chap command.
  7. In order to watch PPP and CHAP initialize, temporarily shut down the serial interfaces using the shut command.
  8. Get out of configuration mode and turn on CHAP debugging with the debug ppp authentication command.
  9. Go back into configuration mode and restart the serial interfaces with the no shut command.
  10. After watching the CHAP process and ensuring that the serial interfaces are operational, turn off debugging with the no debug ppp authentication command.
  11. Test your configuration by pinging and using various show commands.

Submission

Write a short lab report that summarizes your work and any problems you ran into. The lab report should cover:

  1. State of the network before you made any changes
  2. Major changes that you made to the network
  3. Any problems you encountered
  4. Conclusions about the health of the network in its new state

Submit your report

  1. Attach an MS Word-compatible file to the assignment.
  2. Your report should be about 1/2 page long, using a 12-point font and double spacing. It doesn't have to be anything fancy.