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ZyXEL Communications B-2000 User Manual

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ZyAIR B-2000 Wireless LAN Gateway with 4-Port Switch  
NAT 
6-5 
5.  Server: This type allows you to specify inside servers of different services behind the NAT to be 
accessible to the outside world although, it is highly recommended that you use the DMZ port for these 
servers instead. 
Port numbers do not change for One-to-One and Many One-to-One NAT mapping 
types.  
The following table summarizes these types. 
Table 6-2 NAT Mapping Types 
TYPE IP 
MAPPING 
SMT 
ABBREVIATION 
One-to-One ILA1ÅÆ IGA1 
1:1 
Many-to-One (SUA/PAT) 
ILA1ÅÆ IGA1 
ILA2ÅÆ IGA1 
… 
M:1 
Many-to-Many Overload 
ILA1ÅÆ IGA1 
ILA2ÅÆ IGA2 
ILA3ÅÆ IGA1 
ILA4ÅÆ IGA2 
… 
M:M Ov 
Many One-to-One 
ILA1ÅÆ IGA1 
ILA2ÅÆ IGA2 
ILA3ÅÆ IGA3 
… 
M-1-1 
Server 
Server 1 IPÅÆ IGA1 
Server 2 IPÅÆ IGA1 
Server 3 IPÅÆ IGA1 
Server