ZyXEL Communications HS100/HS100W manual Using NAT, SUA Server, SUA Single User Account Versus NAT

HomeSafe User’s Guide

Table 9-2 NAT Mapping Types

TYPE	IP MAPPING	SMT ABBREVIATION
One-to-One	ILA1ÅÆ IGA1	1-1
Many-to-One (SUA/PAT)	ILA1ÅÆ IGA1	M-1
	ILA2ÅÆ IGA1
	…
Many-to-Many Overload	ILA1ÅÆ IGA1	M-M Ov
	ILA2ÅÆ IGA2
	ILA3ÅÆ IGA1
	ILA4ÅÆ IGA2
	…
Many One-to-One	ILA1ÅÆ IGA1	M-1-1
	ILA2ÅÆ IGA2
	ILA3ÅÆ IGA3
	…
Server	Server 1 IPÅÆ IGA1	Server
	Server 2 IPÅÆ IGA1
	Server 3 IPÅÆ IGA1

9.2Using NAT

)You must create a firewall rule in addition to setting up SUA/NAT, to allow traffic from the WAN to be forwarded through the HomeSafe.

9.2.1SUA (Single User Account) Versus NAT

SUA (Single User Account) is a ZyNOS implementation of a subset of NAT that supports two types of mapping, Many-to-Oneand Server. The HomeSafe also supports Full Feature NAT to map multiple global IP addresses to multiple private LAN IP addresses of clients or servers using mapping types. Select either SUA Only or Full Feature in the WAN IP screen.

9.3SUA Server

A SUA 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 example both FTP and web service), it might be better to specify a range of port numbers. You can allocate a server IP address that corresponds to a port or a range of ports.

Many residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to your ISP.

9-4 NAT Screens