ZyXEL Communications Prestige 2802HW(L)-IX Support Notes page 22

5. Many to Many No Overload
In Many-to-Many No Overload mode, the Prestige maps each ILA to unique IGA.
•
Server
In Server mode, the Prestige maps multiple inside servers to one global IP address. This allows us to specify
multiple servers of different types behind the NAT for outside access. Note, if you want to map each server to
one unique IGA please use the One-to-One mode.
The following table summarizes these types.
NAT Type
One-to-One
Many-to-One (SUA/PAT)
Many-to-Many Overload
Many-to-Many
Overload
(Allocate by Connections)
Server
•
SUA Versus NAT
SUA (Single User Account) in previous ZyNOS versions is a NAT set with 2 rules, Many-to-One and Server.
The Prestige now has
servers. With multiple global IP addresses, multiple severs of the same type (e.g., FTP servers) are allowed on
the LAN for outside access. In previous ZyNOS versions (that supported SUA 'visible' servers had to be of
IP Mapping
ILA1<--->IGA1
ILA1---->IGA1
ILA2---->IGA1
...
ILA1---->IGA1
ILA2---->IGA2
ILA3---->IGA1
ILA4---->IGA2
...
ILA1---->IGA1
No ILA2---->IGA3
ILA3---->IGA2
ILA4---->IGA4
...
Server 1 IP<----IGA1
Server 2 IP<----IGA1
Full Feature NAT support to map global IP addresses to local IP addresses of clients or
All contents copyright (c) 2007 ZyXEL Communications Corporation.
Prestige 2802HW(L)-Ix Support Notes
Mapping
Direction
Both
Outgoing
Outgoing
Outgoing
Incoming
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