Chapter 4: L2TPv2 Troubleshooting Lab Solutions

This section contains solutions for L2TPv2 Troubleshooting Labs 1, 2, and 3. Note that the directory L2TPv2/LabSolution directory contains working configuration files for all routers for your reference.

Troubleshooting Lab 1 Solution

1: There is a PPP authentication protocol mismatch between the remote client (TATEBAYASHI@mjlnet.com) and CalCity_LAC. TATEBAYASHI@mjlnet.com is configured to use CHAP, and LODI_NAS1 is configured to use PAP.

Reconfigure the PPP authentication protocol to be CHAP on LODI_NAS1 by using the ppp authentication chap command (on interface BRI number). See the section entitled “LCP Negotiation Between the Remote Access Client and the LAC” on page 266 for more information on ...

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