3 nat – ZyXEL Communications ADSL2+ 4-port Gateway P-660H-D Series User Manual
Page 8

P-660H-D Series Quick Start Guide
8
2 The Prestige automatically creates the
bandwidth class for each service you select.
A) Select High, Mid or Low priority to control the
distribution of bandwidth to selected services. 
A service with High priority is given as much 
bandwidth as it needs. 
If you select services as having the same 
priority, then bandwidth is divided equally 
amongst those services. 
Services not specified in bandwidth management are allocated bandwidth after all specified services 
receive their bandwidth requirements. If the rules set up in this wizard are changed in the advanced 
setup, then the service priority will be set to Others. 
B) Click Finish.
3 NAT
NAT (Network Address Translation - NAT, RFC 1631) means the translation of an IP address in one network to 
a different IP address in another. For example, you could translate one public IP address to multiple private IP 
addresses on your LAN (SUA Only). You must select Routing mode to use routing features such as NAT.
Click 
Advanced 
Setup and 
then NAT 
to open the 
NAT-Mode 
screen. 
Select 
SUA Only 
if you have one public IP address and Full 
Feature if you have multiple public IP addresses 
(for address translation).
If you have 
servers on your 
LAN, configure 
an SUA server 
set to have 
them visible to 
the outside. 
From the NAT - 
Mode screen 
click Edit 
Details and fill 
in the fields as 
shown.
A
B
