Reference Guide for the Model RT328 and Model RH348 ISDN Routers

Table 7-2. Menu 11.3 Remote Node Network Layer Options Fields (continued)

Field

Description

 

 

RIP:

This parameter determines how the router handles RIP (Routing Information

RIP Direction

Protocol). If set to Both (default), the router broadcasts the routing table of the

 

router on the LAN and incorporates RIP broadcasts by other routers into its

 

routing table. If set to In Only, the router broadcasts its routing table on the LAN.

 

If set to Out Only, the router broadcasts its routing table, but it ignores any RIP

 

broadcast packets that it receives. If set to None, the router does not participate in

 

any RIP exchange with other routers. Usually, you should leave this parameter

 

at the default (Both) and let RIP propagate the routing information automatically.

RIP Version

This field determines how the router handles RIP (Routing Information Protocol).

 

The following RIP options are supported by the Model RT328/RH348 router:

 

• RIP-1—The router will accept and send RIP-1 messages only.

 

• RIP-2B—The router will accept RIP-1 and RIP-2 messages (both broadcast

 

and multicast), and send RIP-2 messages in broadcast format.

 

• RIP-2M—The router will accept RIP-1 and RIP-2 messages (both broadcast

 

and multicast), and send RIP-2 messages in multicast format.

 

For most applications, the recommended version is RIP-2B. Select RIP-1 if other

 

connected routers or workstations have problems with RIP-2. Select RIP-2M only

 

in a pure RIP-2 environment.

 

 

Static Route Setup

On a directly connected internetwork, RIP usually handles the routing automatically. However, RIP cannot propagate across isolated networks, as in the case before a connection is made between two subnetworks using one Class C IP address. Without a route, no packets can be forwarded to their destinations. A static route is used to resolve this problem by providing the router with some static routing information. When you configure for Internet access or a remote node, a static route is implicitly created by the router.

Under normal circumstances, the router has adequate routing information after you configure the Internet access and remote nodes, and you do not need to configure additional static routes. You must configure static routes only for unusual cases (for example, subnetting). To view the routes in the routing table, go to the Command Interpreter Mode (Menu 24.8) and type “ip route stat.” After viewing the table, type “exit” to return to the menus. To create additional static routes for IP, use Menu 12 - Static Route Setup. Select an unused number from the menu, and a new menu appears. This menu is Menu 12.1, the Edit IP Static Route menu.

When you complete the menu, press [Enter] at the Press ENTER to Confirm... prompt to save your selections, or press [Esc] at any time to cancel your selections.

7-4

TCP/IP Configuration