Configuring link layer/network/routing protocols on the dialup interface

In dialup interface (physical or dialer interface) view, configure the link layer protocol (which can only be PPP for a dialer interface) using the link-protocol command and assign the dialup interface an IP address using the ip address command.

In system view, perform other configurations.

When PPP encapsulation is configured, you can also configure PAP or CHAP authentication. Moreover, consider the following when you configure PPP-related commands:

• In the C-DCC approach, make the configuration on dialer interfaces.

• In the RS-DCC approach, make the configuration on dialer interfaces and preferably the same configuration on physical dialup interfaces on the calling side to guarantee the reliability of PPP link parameters negotiation; on the called side, make the configuration on physical dialup interfaces.

For more information, see HPE FlexNetwork MSR Router Series Comware 5 Layer 2—WAN Configuration Guide, HPE FlexNetwork MSR Router Series Comware 5 Layer 3—IP Services Configuration Guide, and HPE FlexNetwork MSR Router Series Comware 5 Layer 3—IP Routing Configuration Guide.