Netgear DGND4000 User Manual download pdf (Page 120)

Advanced Settings

120

N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000

5. Click Add Service to display the following screen:

6. In the Service Name field, type a descriptive service name.

7. 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.

8. Select the service type,

either TCP or UDP or both (TCP/UDP). If you are not sure, select

TCP/UDP.

9. In the Triggering Port field, enter the number of the outbound traffic port that causes the

inbo

und ports to be opened.

10. Enter the inbound connection port information in the Service Type, Starting Port, and Ending

Port fields

11. 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

Name Servers (DNS). However, if your Internet account uses a dynamically assigned IP

address, you do not know in advance what your IP address is, 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 (suc

h as 192.168.x.x or 10.x.x.x), the Dynamic

DNS service does not works because private addresses are not routed on the Internet.

Your wireless modem router contains a client tha

t can

connect to the Dynamic DNS service

provided by DynDNS.org. First visit their website at http://www.dyndns.org and obtain an

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Netgear DGND4000 User Manual Page 120