Chapter 11: AI2524 Sync PPP Configuration Steps

4.In interface configuration mode, configure Terminal Access Con- troller Access Control System (TACACS) on a specific interface as an alternative to global host authentication:

ppp use-tacacs [single-line]

or

aaa authentication ppp

Use the ppp use-tacacscommand with TACACS and Ex- tended TACACS. Use the aaa authentication ppp com- mand with Authentication, Authorization, and Accounting (AAA)/TACACS+.

Example: CHAP with an Encrypted Password

These configuration examples enable CHAP on interface serial 0 of three devices.

1. Configure Router yyy.

hostname yyy interface serial 0 encapsulation ppp

pppauthentication chap username xxx password secretxy username zzz password secretzy

2. Configure Router xxx.

hostname xxx interface serial 0 encapsulation ppp

pppauthentication chap username yyy password secretxy username zzz password secretxz

August 1997

Page 11-5

2524UM

 

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AIS AI2524 Example Chap with an Encrypted Password, Ppp use-tacacs single-line Aaa authentication ppp, Configure Router