Netgear AC1900 Nighthawk™ オーナーマニュアル

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Specify Network Settings 
58
Nighthawk AC1900
 WiFi Cable
 Modem
 Router 
Disable SIP ALG. Some VoIP applications do not work well with the SIP ALG. 
Selecting this check box to turn off the SIP ALG might help your VoIP devices to 
create or accept a call through the modem router.
5. 
Click the Apply button.
Your changes are saved.
Set Up a Default DMZ Server
The default DMZ server feature is helpful when you are using some online games and 
videoconferencing applications that are incompatible with Network Address Translation 
(NAT). The modem router is programmed to recognize some of these applications and to 
work correctly with them, but other applications might not function well. In some cases, one 
local computer can run the application correctly if the IP address for that computer is entered 
as the default DMZ server.
WARNING:
DMZ servers pose a security risk. A computer designated as the 
default DMZ server loses much of the protection of the firewall and 
is exposed to exploits from the Internet. If compromised, the DMZ 
server computer can be used to attack other computers on your 
network.
The modem router usually detects and discards incoming traffic from the Internet that is not a 
response to one of your local computers or a service that you have configured in the Port 
Forwarding/Port Triggering screen. Instead of discarding this traffic, you can have the modem 
router forward the traffic to one computer on your network. This computer is called the default 
DMZ server.
To set up a default DMZ server: 
1. 
Launch an Internet browser from a computer or wireless device that is connected to the 
network.
2. 
Type http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
3. 
Enter the user name and password.
The user name is admin. The default password is password. The user name and 
password are case-sensitive.
The BASIC Home screen displays.
4. 
Select ADVANCED > Setup > WAN Setup.