SLIP and PPP Routing and Address Allocation

SLIP and PPP Routing and Address Allocation

There are three basic ways to deal with routing over a SLIP or PPP link, depending on the circumstances.

If you have a few standalone clients connecting to a server on your main network, you'll probably want to assign clients addresses from the server's network, and use proxy-ARP routing.
If you have a lot of standalone clients connecting to your server, you're better off setting aside a subnet for SLIP and PPP client addresses. In this case, the server appears to the main network as a gateway to the SLIP/PPP "net."
If you're connecting two networks together using SLIP or PPP, each network should have its own network number, and the systems that form the endpoints of the link should both run routed.

In all cases, the server should run the routing daemon, routed, unless you have a very small network and use static routing. For more information, see the routed(1M) and route(1M) reference pages. You can turn routed on using the chkconfig command:

# chkconfig routed on

Standalone clients should not run routed.

Proxy-ARP Routing
SLIP/PPP Subnet
Connecting Two Networks With SLIP or PPP
Using Dynamic Address Allocation With PPP