3Com 3C13636 Configuration Manual page 320

3Com Router 3000 Ethernet Family
Configuration Guide
[3Com-luser-3Com2] password simple hello
[3Com-luser-3Com2] service-type ppp
[3Com-luser-3Com2] quit
[3Com] interface serial 3/0/0
[3Com-Serial3/0/0] link-protocol ppp
[3Com-Serial3/0/0] ppp chap user 3Com1
[3Com-Serial3/0/0] ppp authentication-mode chap domain system
[3Com-Serial3/0/0] ip address 200.1.1.1 16
[3Com-Serial3/0/0] quit
[3Com] domain system
[3Com-isp-system] scheme local
2) Configure 3Com 2
[3Com] local-user 3Com1
[3Com-luser-3Com1] service-type ppp
[3Com-luser-3Com1] password simple hello
[3Com-luser-3Com1] quit
[3Com] interface serial 3/0/0
[3Com-Serial3/0/0] link-protocol ppp
[3Com-Serial3/0/0] ppp chap user 3Com2
[3Com-Serial3/0/0] ip address 200.1.1.2 16
Approach II: 3Com 1and 3Com 2 have no users with the same password.
3) Configure 3Com 1
[3Com] local-user 3Com2
[3Com-luser-3Com2] password simple hello
[3Com-luser-3Com2] service-type ppp
[3Com-luser-3Com2] quit
[3Com] interface serial 3/0/0
[3Com-Serial3/0/0] ppp authentication-mode chap domain system
[3Com-Serial3/0/0] ip address 200.1.1.1
[3Com-Serial3/0/0] quit
[3Com] domain system
[3Com-isp-system] scheme local
4) Configure 3Com 2
[3Com] interface serial 3/0/0
[3Com-Serial3/0/0] ppp chap user 3Com2
[3Com-Serial3/0/0] ppp chap password simple hello
[3Com-Serial3/0/0] ip address 200.1.1.2
If you configure the ppp authentication-mode chap command without specifying a
domain to system for example, the default domain named system is adopted at the
time of authentication and local authentication applies by default.
3Com Corporation
1-28
Chapter 1 PPP and MP Configuration