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The following table summarizes these types:
Type
One-to-One
Many-to-One (SUA/PAT)
Many-to-Many Overload
Many-to-Many No Overload
Server
8.2 SUA (Single User Account) Versus NAT
SUA (Single User Account) is a implementation of a subset of NAT that supports two
types of mapping, Many-to-One and Server. The ADSL Router also supports Full
Feature NAT to map multiple global IP addresses to multiple private LAN IP addresses
of clients or servers using mapping types as outlined in.
8.3 Virtual Server and DMZ
A Virtual server set is a list of inside (behind NAT on the LAN) servers, for example,
web or FTP, that you can make visible to the outside world even though SUA makes
your whole inside network appear as a single computer to the outside world.
You may enter a single port number or a range of port numbers to be forwarded, and
the local IP address of the desired server. The port number identifies a service; for
example, web service is on port 80 and FTP on port 21. In some cases, such as for
unknown services or where one server can support more than one service (for
ILA1 IGA1
ILA1 IGA1
ILA2 IGA1
...
ILA1 IGA1
ILA2 IGA2
ILA3 IGA1
ILA4 IGA2
...
ILA1 IGA1
ILA2 IGA2
ILA3 IGA3
...
Server 1 IP IGA1
Server 2 IP IGA1
Server 3 IP IGA1
53
IP Mapping
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