User's Manual

Table Of Contents
What You Need to Create a VPN
User Guide 109
VPN requirements
Before you configure your WatchGuard Firebox X Edge VPN net-
work:
You can connect a maximum of 10 Firebox X Edge devices
together in a star configuration. To configure more VPN
tunnels, a WatchGuard Firebox III or Firebox X and WatchGuard
VPN Manager is necessary.
WatchGuard recommends that each VPN device has a static IP
address. Configuring a VPN tunnel between devices that use
dynamic IP addresses can cause problems. See “Network
addressing” on page 5 for more information about dynamic IP
addresses. Dynamic IP address problems can be resolved with
Dynamic DNS. For Dynamic DNS configuration information,
see “Registering with the Dynamic DNS Service” on page 62.
VPN devices must use the same encryption method, DES or
3DES.
If you connect two Microsoft Windows NT networks, they must
be in the same Microsoft Windows domain, or they must be
trusted domains. This is a Microsoft Networking issue, and not a
limitation of the Firebox X Edge.
We recommend that you record your Firebox X Edge configuration.
Use the Sample VPN Address Information table on the next page to
write down this information.