ZyXEL 35 Guia Do Utilizador

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ZyWALL 35 Support Notes 
 
 
All contents copyright (c) 2006 ZyXEL Communications Corporation.   
39
 
4.
 
NAT Setup (Go to ADVANCED >> NAT
Step1. Choose Address Mapping rules for WAN1 and WAN2. But since we suppose ISDN router on 
WAN2 can do NAT port mapping, and due to some applications may not accept it’s IP address being 
translated twice, so we disable NAT function on WAN2. So users need to configure NAT port 
mapping on the ISDN by themselves. If it’s not the same case as your application, you can still turn 
on NAT function of WAN2. And the settings are just the same as what you configure on WAN1.