Topcom WBR 7101GMR manual 2.6 NAT

2.6 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
2.6.1 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.
2.6.2 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.
2.6.3 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.
2.6.4 UPnP Setting	It allows to Enable or Disable UPnP feature here. After
	you enable the UPnP feature, all client systems that
	support UPnP, like Windows XP, can discover this router
	automatically and access the Internet through this router

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