ZyXEL P-660RU-T3 v2 User Guide - Page 94
SUA (Single User Account) Versus NAT, ZyXEL Device.
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Chapter 12 Network Address Translation (NAT) Screens " Port numbers do not change for One-to-One and Many-to-Many No Overload NAT mapping types. The following table summarizes these types. Table 20 NAT Mapping Types TYPE IP MAPPING One-to-One ILA1ÅÆ IGA1 Many-to-One (SUA/PAT) ILA1ÅÆ IGA1 ILA2ÅÆ IGA1 ... Many-to-Many Overload ILA1ÅÆ IGA1 ILA2ÅÆ IGA2 ILA3ÅÆ IGA1 ILA4ÅÆ IGA2 ... Many-to-Many No Overload ILA1ÅÆ IGA1 ILA2ÅÆ IGA2 ILA3ÅÆ IGA3 ... Server Server 1 IPÅÆ IGA1 Server 2 IPÅÆ IGA1 Server 3 IPÅÆ IGA1 12.2 SUA (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-One and Server. The ZyXEL Device 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 Table 20 on page 94. " Choose SUA Only if you have just one public WAN IP address for your ZyXEL Device. " Choose Full Feature if you have multiple public WAN IP addresses for your ZyXEL Device. 94 P-660RU-T v2 User's Guide