ZyXEL Communications unified security gateway User Manual

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Chapter 7 Tutorials
ZyWALL USG 20/20W User’s Guide
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Click Apply.
Figure 85   Configuration > System > WWW (Second Example Admin Service Rule 
Configured) 
Now administrator access to the Web Configurator can only come from the LAN1 
zone. Non-admin users can still use HTTPS to log into the ZyWALL from any of the 
ZyWALL’s zones (to use SSL VPN for example).
7.9  How to Allow Incoming H.323 Peer-to-peer 
Calls
Suppose you have a H.323 device on the LAN1 for VoIP calls and you want it to be 
able to receive peer-to-peer calls from the WAN. Here is an example of how to 
configure NAT and the firewall to have the ZyWALL forward H.323 traffic destined