User's Manual

Table Of Contents
78 | Chapter 7. Advanced Settings
N750 Wireless Dual Band Gigabit Router WNDR4300 User Manual
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 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:
Your primary Internet access is through a cable modem to an ISP.
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 192.168.1.100.
Your company’s network address is 134.177.0.0.
When you first configured your router, two implicit static routes were created. A default route
was created with your ISP as the 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 134.177.0.0 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 need to define a static route,
telling your router that 134.177.0.0 should be
accessed through the ISDN router at
192.168.0.100
.
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 is to be
forwarded to the ISDN router at
192.168.0.100.
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.