ZyXEL Communications 1600 User Manual
Prestige 1600 Universal Access Concentrator
NAT
9-3
Table 9-1 NAT Mapping Types
Type
IP Mapping
SMT abbreviation
One-to-One
ILA1
"# IGA1
1:1
Many-to-One (SUA/PAT)
ILA1
"# IGA1
ILA2
"# IGA1
…
M:1
Many-to-Many Overload
ILA1
"# IGA1
ILA2
"# IGA2
ILA3
"# IGA1
ILA4
"# IGA2
…
M:M Ov
One-to-One (range):
ILA1
"# IGA1
ILA2
"# IGA2
ILA3
"# IGA3
…
1-1 Ra
Server
Server 1 IP
"#
IGA1
Server 2 IP
"#
IGA1
Server 3 IP
"#
IGA1
Server
No Change
IGA1
"# IGA1
IGA2
"# IGA2
IGA3
"# IGA3
…
No-Ch
9.1.5 SUA (Single User Account) Versus NAT
SUA (Single User Account) in previous ZyNOS versions is a subset of NAT that supports two types of mapping,
Many-to-One and Server. See section 9.2.3 for a detailed description of the NAT set for SUA. The Prestige has
Full Feature NAT support to map local IP addresses to global IP addresses of clients or servers using all mapping
types as outlined in Table 9-1. The Prestige supports NAT sets on a remote node basis. The mapping sets are
reusable, but only one set is allowed for each remote node. Set 255 is for SUA Only which is a convenient, pre-
configured, read only Many-to-1 port mapping set, sufficient for users with just one public IP.
Many-to-One and Server. See section 9.2.3 for a detailed description of the NAT set for SUA. The Prestige has
Full Feature NAT support to map local IP addresses to global IP addresses of clients or servers using all mapping
types as outlined in Table 9-1. The Prestige supports NAT sets on a remote node basis. The mapping sets are
reusable, but only one set is allowed for each remote node. Set 255 is for SUA Only which is a convenient, pre-
configured, read only Many-to-1 port mapping set, sufficient for users with just one public IP.
9.2 SMT
Menus
9.2.1 Applying NAT in the SMT Menus
You apply NAT via menus 4 or 11.3. The next figure shows you how to apply NAT for Internet access in Menu 4.
Enter 4 from the Main Menu to go to Menu 4 - Internet Access Setup.
Enter 4 from the Main Menu to go to Menu 4 - Internet Access Setup.