Netgear MBR1310 MBR1310 User Manual - Page 73

Set Up a Default DMZ Server, Default DMZ Server

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NETGEAR Mobile Broadband 11n Wireless Router MBR1310 Setting Respond to Ping on Internet MTU Size NAT Filtering Disable SIP ALG Description If you want the router to respond to a ping from the Internet, select this check box. This should be used only as a diagnostic tool, since it allows your router to be discovered. Do not select this check box unless you have a specific reason to do so. Maximum transmit unit (MTU) value. For most Ethernet networks this is 1500 bytes, or 1492 bytes for PPPoE connections, or 1436 bytes for PPTP connections. This is set to Secured to provide a secure firewall to protect computers on the LAN from attacks from the Internet. The Open setting is less secure. Some VoIP applications do not work well with SIP ALG. Selecting this check box might help your VoIP devices create or accept a call through the router. Set Up a Default DMZ Server WARNING: For security reasons, you should avoid using the default DMZ server feature. When a computer is designated as the default DMZ server, it loses much of the protection of the firewall, and is exposed to many exploits from the Internet. If compromised, the computer can be used to attack your network. The default DMZ server feature is helpful when you are using some online games and videoconferencing applications that are incompatible with NAT. The router is programmed to recognize some of these applications and to work correctly with them, but there are other applications that 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. Incoming traffic from the Internet is normally discarded by the router unless the traffic is 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 it forwarded to one computer on your network. This computer is called the default DMZ server.  To assign a computer or server to be a default DMZ server: 1. Go to the WAN Setup screen as described in the previous section. 2. Select the Default DMZ Server check box. 3. Type the IP address for that server. 4. Click Apply to save your changes. Advanced Settings 73

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Advanced Settings
73
NETGEAR Mobile Broadband 11n Wireless Router MBR1310
Set Up a Default DMZ Server
WARNING:
For security reasons, you should avoid using the default DMZ
server feature. When a computer is designated as the default DMZ
server, it loses much of the protection of the firewall, and is
exposed to many exploits from the Internet. If compromised, the
computer can be used to attack your network.
The default DMZ server feature is helpful when you are using some online games and
videoconferencing applications that are incompatible with NAT. The router is programmed to
recognize some of these applications and to work correctly with them, but there are other
applications that 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.
Incoming traffic from the Internet is normally discarded by the router unless the traffic is 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 it
forwarded to one computer on your network. This computer is called the default DMZ server.
To assign a computer or server to be a default DMZ server:
1.
Go to the WAN Setup screen as described in the previous section.
2.
Select the
Default DMZ Server
check box.
3.
Type the IP address for that server.
4.
Click
Apply
to save your changes.
Respond to Ping on Internet
If you want the router to respond to a ping from the Internet, select
this check box. This should be used only as a diagnostic tool, since it
allows your router to be discovered. Do not select this check box
unless you have a specific reason to do so.
MTU Size
Maximum transmit unit (MTU) value. For most Ethernet networks this
is 1500 bytes, or 1492 bytes for PPPoE connections, or 1436 bytes
for PPTP connections.
NAT Filtering
This is set to
Secured
to provide a secure firewall to protect
computers on the LAN from attacks from the Internet. The Open
setting is less secure.
Disable SIP ALG
Some VoIP applications do not work well with SIP ALG. Selecting
this check box might help your VoIP devices create or accept a call
through the router.
Setting
Description