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Prestige 2602RL-D3A Support Notes
All contents copyright (c) 2007 ZyXEL Communications Corporation.
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1. NAT Mapping Types
NAT supports five types of IP/port mapping. They are:
2. One to One
In One-to-One mode, the Prestige maps one ILA to one IGA.
3. Many to One
In Many-to-One mode, the Prestige maps multiple ILA to one IGA. This is equivalent to SUA (i.e., PAT, port
address translation), ZyXEL's Single User Account feature that previous ZyNOS routers supported (the SUA
only option in today's routers).
4. Many to Many Overload
In Many-to-Many Overload mode, the Prestige maps the multiple ILA to shared IGA.
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.