This page is used to configure a network link using PPP over a serial line. In order to enable PPP, no other features can be enabled on the serial line. Tunneling (Connect and Accept modes) and Command Mode must both be turned off before proceeding.

It's important to note that this device acts as the server side of the PPP link. This device can force authentication and is able to assign an IP Address to the peer. Once the PPP interface is up, IP packets are routed appropriately to and from the Ethernet and PPP interfaces.

The Local IP Address is the IP Address that will be assigned to the PPP interface on the device. The Peer IP Address is the IP Address that will be assigned to the peer if asked during negotiation.

There are three different authentication schemes supported by this device. None which means no authentication is necessary during link negotiation, the Password Authentication Protocol (PAP), and the Challenge-Handshake Authentication Protocol (CHAP). Both PAP and CHAP require that a username and password be configured for the PPP interface.

The Auth Username and Auth Password are the credentials used by the PAP and CHAP authentication protocols during link negotiation. If authentication is to be used on the PPP interface, the peer must be configured to use this username and password.