Networking Guide
Chapter 9, Configuring the Point-to-Point Protocol (PPP)

PPP gateway

PPP gateway

A PPP gateway is a TCP/IP gateway that has one or more PPP network interfaces. A TCP/IP gateway is a machine that has been configured to forward IP packets that are not addressed to itself. If a TCP/IP gateway has PPP network interfaces, it will forward packets that are either received over a PPP connection or are addressed to a remote system accessible via a PPP interface.

See ``Configuring a PPP gateway'' for instructions.

A system can also be configured as a gateway by setting the values of the TCP/IP parameters ipforwarding and ipsendredirects to 1. This enables packets to be routed between all network interfaces on the machine. For more information, see Appendix C, ``Configuring TCP/IP tunable parameters'' in the Performance Guide.


NOTE: The Network Configuration Manager will also ask if you want the host to act as a gateway when you configure an additional network interface such as a Token-Ring interface or Ethernet interface.

You may want to use proxy ARP on a PPP gateway; see the following section.