Chapter 3 - Universal Address Translation - Gemtek Systems P-560 User Manual

User's Guide
Chapter 3 – Universal Address Translation
Universal Address Translation (UAT) allows Hotspot operators to offer true Plug&Play access for
their subscribers.
With UAT enabled, the Access Controller will automatically and transparently translate fixed IP
settings (IP address, gateway, DNS, proxy server) on a user's PC enabling him to connect to the
broadband Internet service.
Without UAT public access, subscribers are forced to switch their TCP/IP settings to DHCP
(automatic IP address assignment), potentially losing any fixed IP address settings they previously
entered.
When using UAT operators have to be aware of some principal limitations:
IP: 10.1.1.1/16
IP: 192.168.2.100
IP: 10.1.1.1/16
IP Conflict
IP: 10.1.1.1
Gemtek Systems
Conflict: Subscribers cannot access WAN
IP: 192.168.2.66/24
services if their IP address overlaps the IP
subnet of the WAN port.
Work-around: Use a public IP address or a
IP Conflict seldom-used private IP address (range) for the
WAN port.
Conflict: Subscriber's IP address must not be
IP: 192.168.2.66/24
identical to the LAN IP address of the Access
Controller.
Work-around: Use a seldom-used IP address
range for the LAN port.
Chapter 3 – Universal Address Translation
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