Netgear 12100187 ユーザーズマニュアル

WAN Setup

Select Advanced > WAN Setup to display the following screen:

The following settings are available:

Disable Port Scan and DoS Protection. The firewall protects your LAN against port 

scans and denial of service (DoS) attacks. This protection should be disabled only in 
special circumstances.

Default DMZ Server. The default demilitarized zone (DMZ) server feature is helpful when 

you use online games and video conferencing applications that are incompatible with 
NAT. See 

69.

Respond to Ping on Internet WAN Port. 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, because 
it allows your router to be discovered. Do not select this check box unless you have a 
specific reason to do so.

Disable IGMP Proxying. The IGMP Proxying function lets a PC on the LAN receive 

multicast traffic from the Internet. Select this check box to disable the function if you do 
not need it.

MTU Size (in bytes). The normal Maximum Transmit Unit (MTU) value for most Ethernet 
networks is 1500 bytes, or 1492 bytes for PPPoE connections. For some ISPs you might 
need to reduce the MTU. But this is rarely required, and should not be done unless you 
are sure it is necessary for your ISP connection.

NAT Filtering. By default NAT filtering is used.