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101
N900 Wireless Dual Band Gigabit Router WNDR4500
6. Click Add Service to display the following screen:
7. In the Service Name field, type a descriptive service name.
8. In the Service User list, select Any (the default) to allow this service to be used by any
computer on the Internet. Otherwise, select Single address, and enter the IP address of
one computer to restrict the service to a particular computer
.
9. Select the service type, either TCP or UDP or both (TCP/UDP). If you are not sure, select
TCP/UDP
.
10. In the
Triggering Port field, enter the number of the outbound traffic port that will cause the
inbound ports to be opened.
11. Enter the inbound connection port information in the Connection
Type, Starting Port, and
Ending Port fields.
12. Click Apply.
The service appears in the Port Triggering Portmap table.
Dynamic DNS
If your Internet service provider (ISP) gave you a permanently assigned IP address, you can
register a domain name and have that name linked with your IP address by public Domain
Name Servers (DNS). However, if your Internet account uses a dynamically assigned IP
address, you do not know in advance what your IP address will be, and the address can
change frequently. In this case, you can use a commercial Dynamic DNS service. This type
of service lets you register your domain to their IP address and forwards traffic directed at
your domain to your frequently changing IP address.
If your ISP assigns a private WAN IP address (such as 192.168.x.x or 10.x.x.x), the Dynamic
DNS service will not work because private addresses are not routed on the Internet.
Your router contains a client that can connect to the Dynamic DNS service provided by
DynDNS.org. First visit their website at http://www
.dyndns.org and obtain an account and