Special Considerations; Frequently Asked Questions - Watchguard Firebox SOHO 6.1 User Manual

Special Considerations

Consider the following before configuring your WatchGuard
SOHO 6 VPN network:
• You can connect up to six SOHO 6 appliances together. To set
up more VPN tunnels, you need at least one WatchGuard
Firebox II/III configured with the WatchGuard VPN
Manager.
• Each appliance must be able to send messages to the other. If
either appliance has a dynamically assigned IP address (see
"Network addressing" on page 31 for an explanation of
dynamic IP addresses), that appliance cannot find its remote
counterpart.
• Both appliances must use the same encryption method. The
two choices are DES or 3DES. When connecting two
Microsoft Windows NT
be in the same Microsoft Windows domain or be trusted
domains. This is a Microsoft Networking design
implementation and not a limitation of the SOHO 6.

Frequently Asked Questions

Why do I need a static external address?
To create a VPN connection, one SOHO 6 must be able to find its
partner appliance. If the addresses are allowed to change, the
SOHO 6 will not find its remote computer.
How do I get a static external IP address?
Contact your ISP. Many systems use dynamically assigned
addresses to simplify basic installations. Some providers also use
User Guide
Frequently Asked Questions
®
networks, the two networks must
87