Netgear N300 사용자 설명서

WAN Setup

Select Advanced > WAN Setup to display the following screen:

The following settings are available:

. The firewall protects your LAN against port 

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

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

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

. If you want the modem 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 modem router to be discovered. Do not select this check box 
unless you have a specific reason to do so.

. 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.

. By default NAT filtering is used. 

. 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.

. The IGPM Proxying feature lets a LAN PC receive the multicast 

traffic directed to it from the Internet. Selecting this check box prevents this from occuring.