SMC Networks BR21VPN - annexe 1 Manual page 121

Define the required fields of Virtual Server
WAN IP：
WAN IP Address (Real IP Address)
Map to Virtual IP：
Map the WAN Real IP Address into the LAN Private IP Address
Virtual Server Real IP：
The WAN IP address which mapped by the Virtual Server.
Service name (Port Number)：
The service name that provided by the Virtual Server.
External Service Port：
The WAN Service Port that provided by the virtual server. If the service you
choose only have one port and then you can change the port number here.
(If change the port number to 8080 and then when the external users going
to browse the Website; he/she must change the port number first to enter
the Website.)
Server Virtual IP：
The virtual IP which mapped by the Virtual Server.
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