Netgear AC1600 Manual Do Proprietário

Página de 169
Advanced Home Settings 
31
 R6250 Smart WiFi Router
Respond to Ping on Internet Port. If you want the router to respond to a ping from 
the Internet, select this check box. Use this setting only as a diagnostic tool because 
it allows your router to be discovered. Do not select this check box unless you have a 
specific reason.
Disable IGMP Proxying. IGMP proxying allows a computer on the local area network 
(LAN) to receive the multicast traffic it is interested in from the Internet. If you do not 
need this feature, you can select this check box to disable it.
MTU Size (in bytes). The normal MTU (maximum transmit unit) value for most 
Ethernet networks is 1500 bytes, or 1492 bytes for PPPoE connections. For some 
ISPs, you might need to reduce the MTU. This is rarely required. Reduce the MTU 
only if you are sure that it is necessary for your ISP connection. See 
NAT Filtering. Network Address Translation (NAT) determines how the router 
processes inbound traffic. Secured NAT provides a secured firewall to protect the 
computers on the LAN from attacks from the Internet, but might prevent some Internet 
games, 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. 
3. 
Click Apply.
Your changes are saved.
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 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 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 router 
forward the traffic to one computer on your network. This computer is called the default DMZ 
server.