MitraStar Movistar GPT-2541GNAC, Руководство пользователя

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Table 33 Virtual Servers Add
LABEL DESCRIPTION
Use Interface Select a WAN interface for which you want to configure a virtual server rules.
Service Name Select a Service : use the drop-down list to select a service.
Custom Service : type a name to specify a different service.
Server IP
Address
Enter the inside IP address of the LAN device to which the virtual server forwards
traffic.
Apply/Save Click this button to save your changes.
External Port
Start
Enter the original destination port for the packets.
To forward only one port, enter the port number again in the
External End Port field.
To forward a series of ports, enter the start port number here and the end port
number in the External End Port field.
External Port
End
Enter the last port of the original destination port range.
To forward only one port, enter the port number in the
External Start Port field above
and then enter it again in this field.
To forward a series of ports, enter the last port number in a series that begins with the
port number in the External Start Port field above.
Protocol Select the protocol supported by this virtual server. Choices are TCP , UDP , or TCP/UDP .
Internal Port
Start
Enter the port number here to which you want the Router to translate the incoming
port. For a range of ports, enter the first number of the range to which you want the
incoming ports translated.
Internal Port
End
Enter the last port of the translated port range.
Apply/Save Click this button to save your changes.
Chapter 6 Network Address Translation (NAT) 65
6.2 Port Triggering
Some services use a dedicated range of ports on the client side and a dedicated range of ports on
the server side. With regular port forwarding you set a forwarding port in NAT to forward a service
(coming in from the server on the WAN) to the IP address of a computer on the client side (LAN). The
problem is that port forwarding only forwards a service to a single LAN IP address. In order to use
the same service on a different LAN computer, you have to manually replace the LAN computer's IP
address in the forwarding port with another LAN computer's IP address.