Troubleshooting Virtual Private Networks

show and debug Command Summary

Table 4-12 summarizes show and debug commands used to troubleshoot L2TP in this chapter.

Table 4-12. show and debug Commands Used to Troubleshoot L2TP

Command	Parameter	Description
show caller	username	Displays a summary of information about the user
show user		Displays a list of users
show vpdn	tunnel all	Displays detailed L2TP tunnel information
	session	Displays L2TP session summary
	session all	Displays detailed L2TP session information
	history failure	Displays L2TP session/tunnel failure information
debug vpdn	error	Displays L2TP error conditions
	event	Displays L2TP events
	packet	Displays L2TP packets
debug vpdn l2x-	data	displays L2TP data packets
	errors	Displays detailed L2TP error information
	events	Displays detailed L2TP tunnel/session ...