Netgear 13300241 用户手册

In the Service Name field, type a descriptive service name. No spaces are allowed for the 

service name field.

In the Service User list, select Any (the default) to allow any computer on the Internet to use 

this service. Otherwise, select Single address, and enter the IP address of one computer to 

restrict the service to a particular computer . 

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

TCP/UDP.

In the Triggering Port field, enter the number of the outbound traf fic port that causes the 

inbound ports open. 

Enter the inbound connection port information in the Connection  Type, Starting Port, and 

Ending Port fields.

Click the Apply button.
The service displays in the Port Triggering Portmap table. 

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 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 (such as 192.168.x.x or 10.x.x.x), the Dynamic 

DNS service does not work because private addresses are not routed on the Internet.
Your modem router contains a client that can connect to the Dynamic DNS service that 

DynDNS.org provided. First visit their website at 

 and obtain an 

account and host name that you configure in the modem router. Then, whenever your 

ISP-assigned IP address changes, your modem router automatically contacts the Dynamic 

DNS service provider, logs in to your account, and registers your new IP address. If your host 

name is hostname, for example, you can reach your modem router at 

.

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From the Advanced tab, select Advanced Setup > Dynamic DNS.