Edimax Technology 3G-6200n - Manual (Page 73)

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2.7 NAT
Network Address Translation (NAT) allows multiple users at your local
site to access the Internet through a single Public IP Address or multiple
Public IP Addresses. NAT provides Firewall protection from hacker
attacks and has the flexibility to allow you to map private IP addresses
to public IP addresses for key services such as Websites and FTP.
Parameters Description
Port
Forwarding
You can have different services (e.g. email, FTP, Web
etc.) going to different service servers/clients in your
LAN. The Port Forwarding function allows you to
redirect a particular range of service port numbers
(from the Internet/WAN Ports) to a particular LAN IP
address.
Virtual Server
You can have different services (e.g. email, FTP, Web
etc.) going to different service servers/clients in your
LAN. The Virtual Server allows you to redirect a
particular service port number (from the Internet/WAN
Port) to a particular LAN IP address and its service
port number.
Special
Applications
Some applications require multiple connections, such
as Internet games, video conferencing, Internet
telephony and others. In this section you can
configure the router to support these types of
applications.
UPnP Setting
It allows to enable or disable UPnP feature here. After
you enable the UPnP feature, all client systems that