H3C Technologies H3C SR8800 - Manual (Page 45)

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2. Configure Router B:
# Create a user account for Router A on Router B.
system-view
[RouterB] local-user usera
# Set a password for the user account.
[RouterB-luser-usera] password simple hello
# Set the service type of the user account to PPP.
[RouterB-luser-usera] service-type ppp
[RouterB-luser-usera] quit
[RouterB] interface Serial 4/1/9/1:0
# Enable PPP encapsulation on interface Serial 4/1/9/1:0.
[RouterB-Serial4/1/9/1:0] link-protocol ppp
# Configure the username for Router B when Router B is authenticated by using CHAP.
[RouterB-Serial4/1/9/1:0] ppp chap user userb
# Assign an IP address to Serial 4/1/9/1:0.
[RouterB-Serial4/1/9/1:0] ip address 200.1.1.2 16
Approach II: The authenticator with no username configured authenticates the remote end using CHAP.
3. Configure Router A:
# Create a user account for Router B.
system-view
[RouterA] local-user userb
# Set a password for the user account.
[RouterA-luser-userb] password simple hello
# Set the service type of the user account to PPP.
[RouterA-luser-userb] service-type ppp
[RouterA-luser-userb] quit
[RouterA] interface Serial 4/1/9/1:0
# Set the authentication mode to CHAP.
[RouterA-Serial4/1/9/1:0] ppp authentication-mode chap domain system
# Assign an IP address to Serial 4/1/9/1:0.
[RouterA-Serial4/1/9/1:0] ip address 200.1.1.1 16
[RouterA-Serial4/1/9/1:0] quit
# Configure local authentication for the PPP users in the default ISP domain system.
[RouterA] domain system
[RouterA-isp-system] authentication ppp local
4. Configure Router B:
# Configure the username of Router B when Router B is authenticated by using CHAP.
system-view
[RouterB] interface Serial 4/1/9/1:0
[RouterB-Serial4/1/9/1:0] ppp chap user userb
# Set the default CHAP password.
[RouterB-Serial4/1/9/1:0] ppp chap password simple hello
# Assign an IP address to Serial 4/1/9/1:0.
[RouterB-Serial4/1/9/1:0] ip address 200.1.1.2 16