Netgear WNDR3700V4 ユーザーズマニュアル

ページ / 115
NETGEAR genie Advanced Home
38
N600 Wireless Dual Band Gigabit Router WNDR3700v4 
point-to-point applications, or multimedia applications from functioning. Open NAT 
provides a much less secured firewall, but allows almost all Internet applications to 
function. 
Disable SIP ALG. The Session Initiation Protocol (SIP) Application Level Gateway (ALG) 
is enabled by default to optimize VoIP phone calls that use the SIP. The Disable SIP ALG 
check box allows you to disable the SIP ALG. Disabling the SIP ALG might be useful 
when running certain applications.
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 router recognizes some of these applications and works correctly with them, but 
other applications might not function well. In some cases, one local computer can run the 
application correctly if that computer’s IP address 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 router usually detects and discards incoming traffic from the Internet that is not a 
response to local computers or a service that you set up in the Port Forwarding/Port 
Triggering screen. Instead of discarding this traffic, you can have the 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.
On the WAN Setup screen, select the Default DMZ Server check box.
2.
Type the IP address.
3.
Click Apply.