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9-6 Configuring Dynamic Routes Using RIP
Configuring Dynamic Routes Using RIP
This section describes how to configure Digi One/PortServer TS 2/4 for dynamic routing.
Related Information
See the set forwarding command in the Digi One/PortServer TS Command Reference.
Starting Point
This procedure assumes that you have sign on as root and have or will configure modems, modem
scripts, devices, and filters for routes that use serial lines.
Procedure
1. Configure the links over which routed packets and RIP updates will be sent.
• To enable routing over the LAN to which Digi One/PortServer TS 2/4 is attached, no rout-
ing-specific configuration is required.
• To enable routing over PPP, links be sure to use the netrouting field on the set user command
to configure how Digi One/PortServer TS 2/4 handles RIP updates. You can configure the
link so that Digi One/PortServer TS 2/4 does any of the following with RIP updates:
— Both sends and receives them (netrouting=both)
— Sends them only (netrouting=send)
— Receives them only (netrouting=receive)
— Neither sends nor receives them (netrouting=off)
2. Configure the Digi One/PortServer TS 2/4 for dynamic routing with a set forwarding command
that specifies state=active.
You may also want to turn on the poisonreverse and splithorizon fields to prevent the RIP slow
convergence problem discussed on page 9-3. See the discussion on the set forwarding command
provided in the Digi One/PortServer TS Command Reference for more information.
Example: Dynamic Routes
In this example, which shows only those commands and command fields pertinent to routing, Digi
One/PortServer TS 2/4 is configured for dynamic routing using RIP. But to prevent RIP updates
from being sent across the PPP link, the set user command that defines the link specifies
netrouting=off.
set forwarding state=active poisonreverse=on splithorizon=on
set user name=link1...netrouting=off
Digi Device
Router
192.150.75.0
187.100.46.9
PPP