ConnectGear gr-104 v3.0 ユーザーガイド

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2.4 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. 
 
 
 
Parameter 
   Description 
2.4.1 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 allows you to re-direct a 
particular range of service port numbers (from the 
Internet/WAN Ports) to a particular LAN IP address. 
 
2.4.2 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 re-direct a 
particular service port number (from the Internet/WAN 
Port) to a particular LAN IP address and its service port 
number. 
 
2.4.3 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. 
 
 
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