Actiontec electronic RI408 ユーザーズマニュアル

Actiontec Broadband Router User Manual

Chapter 5 Configuring the Router’s Security

DMZ (Demilitarized Zone) Host

The

DMZ

host feature allows one device on the network to operate outside the

firewall. Designate a

DMZ

host:

• To use an Internet service, such as an online game or video-conferencing

program, not present in the Port Forwarding list and for which no port
range information is available.

• To expose one computer to all services without restriction or security.

Warning: A

DMZ

host is not protected by the firewall and may be

vulnerable to attack. Designating a

DMZ

host may also put other

computers in the local network at risk. When designating a

DMZ

host, consider the security implications and protect it if necessary.

To designate a local computer as a

DMZ

host:

1. Select DMZ Host from the left side of any Security screen. The “

DMZ

Host”

screen appears.

2. Click in the “

DMZ

Host

Address” check box, then enter the

address of the

computer to be designated as a

DMZ

host. Note that only one network com-

puter can be a

DMZ

host at any time.

3. Click Apply.

Click in the “

DMZ

Host

Address” check box again to disable the

DMZ

host.