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Using Static Routes
Static routes provide additional routing information to your router. Under normal circumstances, the router has adequate routing information after it has been configured for Internet access, and you do not need to configure additional static routes. You must configure static routes only for unusual cases such as multiple routers or multiple IP subnets located on your network.
Static Route Example
As an example of when a static route is needed, consider the following case:
You have an ISDN router on your home network for connecting to the company where you are employed. This router’s address on your LAN is
When you first configured your router, two implicit static routes were created. A default route was created with your ISP as the modem router, and a second static route was created to your local network for all 192.168.0.x addresses. With this configuration, if you attempt to access a device on the network, your router forwards your request to the ISP. The ISP forwards your request to the company where you are employed, and the request is likely to be denied by the company’s firewall.
In this case you must define a static route, telling your router that should be accessed through the ISDN router at The static route setup would look like Figure 5-6.
In this example:
The Destination IP Address and IP Subnet Mask fields specify that this static route applies to all 134.177.x.x addresses.
The Gateway IP Address field specifies that all traffic for these addresses should be forwarded to the ISDN router at
The value in the Metric field represents the number of routers between your network and the destination. This is a direct connection, so it can be set to the minimum value of 2.
The Private check box is selected only as a precautionary security measure in case RIP is activated.
How to Configure Static Routes
Log in to the modem router at its default LAN address of with its default user name of admin and default password of password, or using whatever user name, password, and LAN address you have chosen for the modem router.
In the main menu, under Advanced, select Static Routes to display the Static Routes table.
Figure 5-5 
Click Add to open the following Static Routes screen.
Figure 5-6 
Enter a route name for this static route in the Route Name field. This name is for identification purpose only.
Select Private if you want to limit access to the LAN only. The static route will not be reported in RIP.
Select Active to make this route effective.
Enter a number between 2 and 15 as the metric value in the Metric field. This represents the number of routers between your network and the destination. Usually, a setting of 2 or 3 works.
Click Apply. The Static Routes table is updated to show the new entry.
Figure 5-7 

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