VIEWSONIC Wireless Media Gateway WMG80 - Manual (Page 52)

ViewSonic Wireless Media Gateway 46
NAT (Network Address Translation)
NAT is a function allows several networked PCs to share an
Internet account using only a single IP address, which may be
statically or dynamically assigned by your Service Provider. Click
“Add” to add more rule to NAT Configuration.
The WMG accomplishes this address sharing by translating the
internal LAN IP addresses to public unique address/addresses on
the Internet. The internal LAN IP addresses can be either private
addresses or registered addresses. In NAT type, you can choose
Many-to-one or Many-to-many. In Many-to-one configuration, it
translates multiple LAN IP addresses to one single public address
on Internet. In Many-to-many configuration, it translates multiple
LAN IP addresses to a range of public addresses. This will be
used when your service provider provide you a range of IP
addresses.
DMZ
A DMZ (Demilitarized Zone) is a buffer zone between the Internet,
and your private networks. It can be a public network typically
used for Web, FTP and E-Mail servers that are accessed by
external clients on the Internet. Separating these public access
server with your private network provide higher security for your
network.
A DMZ Host is a computer that has all external Internet traffic
forwarded to it. This allows a computer to be exposed to
unrestricted two-way communication. This feature should be used
only when necessary, since it is not protected by any security rules
of the firewall.