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network (LAN). The appropriate subnet mask carried along with the
packet would be: 255.255.255.0
Default routing
gateway
The default gateway IP is assigned by the ISP or your NAT router’s
LAN IP.
DHCP
Enable the DHCP client function if you have the Cable Modem
connection to access the Internet
NAT
Network Address Translation. NAT located where the LAN meets
the Internet makes all necessary IP address translations.
Enable this function if your gateway is sharing the Internet
connection with PC, notebook or some other network devices.
SNTP
Simple Network Time Protocol. It’s a simplified version of the NTP
protocol, it is an Internet protocol used to synchronize the clocks of
gateway to some time reference
SNTP Server
Address
Enter the preferred Time server address here
You can find the public SNTP server list on Microsoft web site
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q262680
GMT
SNTP uses UTC(Universal Time Coordinated) as reference time,
formerly and still widely called Greenwich Mean Time (GMT). Set
the correct GMT for your location to get time display correctly.
IP Sharing
Enable this function when you place the gateway behind the NAT
router device.
UPnP
Universal Plug and Play (UPnP) is a standard that uses Internet
and Web protocols to enable devices such as PCs, peripherals,
intelligent appliances, and wireless devices to be plugged into a
network and automatically know about each other. With UPnP,
when a user plugs a device into the network, the device will
configure itself, acquire a TCP/IP address, and use a discovery
protocol based on the Internet's Hypertext Transfer Protocol
(HTTP) to announce its presence on the network to other devices.
If the gateway behinds the NAT router with UPnP supported, you
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