Chapter Nine: Advanced Installations | IP routes 126 |
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The Routing Information Protocol (RIP)
RIP permits the DIVA LAN ISDN Modem to automatically discover routes for itself, by listening to routing broadcasts from other networks. If your corporate LAN broadcasts RIP updates, the DIVA LAN ISDN Modem will be able to discover routes to all subnets connected to it. For example, if a subnet does not have the same network address as your corporate network (as above), you need to create a specific route to support it. However, since RIP is enabled by default, all you need to do is specify a single route to the corporate network. The DIVA LAN ISDN Modem will listen for RIP broadcasts and define the needed routes.
RIP also works on the local LAN created by the DIVA LAN ISDN Modem. If this LAN is connected to other LANs, RIP will discover the routes to these LANs (if they are configured to broadcast RIP routing information).
Defining routes for the DIVA LAN ISDN Modem
You always need to have at least one route. When you use the Internet wizard, the default route (0.0.0.0) is automatically created for you.
In some cases, it may be necessary to manually add a route, even though RIP is enabled. To edit the routing table, do the following:
1.Start the Web configuration interface and log in.
2.Click Manual Configuration.
3.Click IP.
4.Click Routes to display the following page. If you previously ran the Internet wizard, the routing table should have at least one entry in it, the default route 0.0.0.0.
Note Only one default route can be defined for the DIVA LAN ISDN Modem, and its network address is always 0.0.0.0. Since the Internet wizard automatically creates a default route for the ISP profile, you must delete this route if you want to use a default route with the Corporate profile.
Use the explanations below to guide you in defining more routes.
•Network address: Specifies the IP address of datagrams that should be routed. The address you set here is compared against the destination address in all datagrams that pass through the DIVA LAN ISDN Modem. If a match is found, the datagram is routed to the profile specified under Interface.
•Mask: Lets you specify the number of bits that are checked when the DIVA LAN ISDN Modem compares the address of a datagram to that specified by the Network Address parameter. See “About IP addresses” on page 120 for more information.
