ZyXEL Communications 2WG - Manual (Page 43)

ZyWALL 2WG Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
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Secure Connections across the Internet
Site-to-Site VPN (Intranet) Scenario
A site-to-site VPN protects the network resources on your protected networks from unauthorized use by
users on an unprotected network, such as the public Internet. Site-to-site VPN connects offices in different
locations with encryption technology.
Configure ZyWALLs with Static WAN IP Address
This section describes an example configuration ZyWALL with static WAN IP address.
If ZyWALL is used as Internet gateway and public IP address is assigned on ZyWALL’s WAN interface.
ZyWALL uses this public WAN IP address for terminating the VPN tunnels from remote VPN gateways.
In following example, local VPN gateway (ZyWALL) uses a static public IP address.