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N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000
As an example of when a static route is needed, consider the following case:
• Y
our primary Internet access is through a cable modem to an ISP.
• Y
ou have an ISDN wireless modem router on your home network for connecting to the
company where you are employed. This wireless modem router’s address on your LAN is
192.168.1.100.
• Y
our company’s network address is 134.177.0.0.
When you first configured your wireless modem router, two implicit static routes were
created.
A default route was created with your ISP as the gateway, and a second static route
was created to your local network for all 192.168.1.x addresses. With this configuration, if you
attempt to access a device on the 134.177.0.0 network, your wireless modem 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 have to define a static route, telling your wireless modem router that
134.177.0.0 should be accessed through the ISDN wireless modem router at 192.168.1.100.
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 should be
forwarded to the ISDN wireless modem router at 192.168.1.100.
• A metric value of 1 works since the ISDN wireless modem router is on the LAN.
• Private is selected only as a precautionary security measure in case RIP is activated.
To set up a static route:
1. Select ADV
ANCED > Advanced Setup > Static Routes.
2. Click Add.