Planet Technology XRT-104D - Manual (Page 41)

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3.4.2 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.
3.4.3 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.
3.4.4 UPnP With UPnP, all PCs in you Intranet will discover this
router automatically. So you do not have to do any
configuration for your PC and can access the Internet
through this router easily.
3.4.5 Protocol and Port Binding Protocol and Port Binding let you manually bind an
application to a WAN port. Only packets that match all
the entered criteria will be bound to the assigned WAN
port. You can have to fill all the items. The items that you
leave blank will be ignored.
3.4.6 ALG Setting
You can select special applications that need
“Application Layer Gateway” to support here.
Click on one of the three NAT selections and proceed to the manual's relevant sub-section.
3.4.1 Port Forwarding
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. It helps you to host some servers behind the
router NAT firewall.