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Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide
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Chapter 5 Maintenance
Troubleshooting
Interactive Users
Symptom
•
Interactive users can not authenticate.
Possible Cause
•
Incorrect method under AAA or method-list under line configuration.
• Back-end authentication rejected (RADIUS/TACACS).
Symptom
•
Interactive user authenticates but PPP does not/cannot start (even after “ppp default”).
Possible Cause
•
User is not authorized to start PPP based on RADIUS/TACACS profile.
• Unable to assign an IP address.
Symptom
•
User authenticates and PPP appears to start but fails eventually.
Possible Cause
•
User is double authenticated.
–
AAA authen PPP login if-needed radius
• IP address allocation/PPP negotiation failure.
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