Netgear WNDR4300 – N750 Wireless Dual Band Gigabit Router ユーザーズマニュアル
Advanced Settings
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N750 Wireless Dual Band Gigabit Router WNDR4300
4.
In the Port Triggering Timeout field, enter a value up to 9999 minutes.
This value controls the inactivity timer for the designated inbound ports. The inbound
ports close when the inactivity time expires. This is required because the router cannot be
sure when the application has terminated.
ports close when the inactivity time expires. This is required because the router cannot be
sure when the application has terminated.
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 you want to
cause the inbound ports to open.
10.
Enter the inbound connection port information in the Connection 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
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.
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 does not work because private addresses are not routed on the Internet.
DNS service does 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
DynDNS.org. First visit their website at
http://www.dyndns.org
and obtain an account and
host name that you configure in the router. Then, whenever your ISP-assigned IP address
changes, your router contacts the Dynamic DNS service provider, logs in to your account,
changes, your router contacts the Dynamic DNS service provider, logs in to your account,