On Networks N150RM User Manual - Manual (Page 57)

Advanced Settings
57
N150 Wireless ADSL2+ Modem Router N150RM
3. Select the Use a Dynamic DNS Service check box.
4. Enter the web address of your Dynamic DNS service provider. For example, for
DynDNS.org, type www.dyndns.org.
5. Type the host name (or domain name) that your Dynamic DNS service provider gave you.
6. Type the user name for your Dynamic DNS account. This is the name that you use to log in
to your account, not your host name.
7. Type the password (or key) for your Dynamic DNS account.
8.
Click Apply to save your configuration.
Static Routes
Static routes provide additional routing information to your modem router. Typically, you do
not need to add static routes. You have to configure static routes only for unusual cases such
as multiple modem routers or multiple IP subnets on your network.
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 modem router on your home network for connecting to the company
where you are employed. This modem router’s address on your LAN is 192.168.0.100.
•
Your company’s network address is 134.177.0.0.
When you first configured your 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 192.168.0.x addresses. With this configuration, if you
attempt to access a device on the 134.177.0.0 network, your 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 modem router that 134.177.0.0
should be accessed through the ISDN modem 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 should be
forwarded to the ISDN modem router at 192.168.0.100.
• A metric value of 1 will work since the ISDN modem router is on the LAN.
• Private is selected only as a precautionary security measure in case RIP is activated.