PLANET SG-1000 - Manual (Page 138)

In this chapter, we will have detailed introduction and instruction of Mapped IP and
Server 1/2/3/4:
Mapped IP: Because the Intranet is transferring the private IP by NAT Mode (Network
Address Translation). And if the server is in LAN, its IP Address is belonging to Private
IP Address. Then the external users cannot connect to its private IP Address directly.
The user must connect to the SG-1000’s WAN subnet’s Real IP and then map Real IP to
Private IP of LAN by the SG-1000. It is a one-to-one mapping. That is, to map all the
service of one WAN Real IP Address to one LAN Private IP Address.
Server 1/2/3/4: Its function resembles Mapped IP’s. But the Virtual Server maps one to
many. That is, to map a Real IP Address to 1~4 LAN Private IP Address and provide
the service item in Service.