WatchGuard Technologies WatchGuard Firebox SOHO 6 - Manual (Page 49)

User Guide 31
CHAPTER 4
Configure the
Network Interfaces
Configure Your External Network
When you configure the external network, you establish how the
SOHO 6 communicates with your ISP. This configuration depends
upon how your ISP distributes network addresses–using DHCP
or PPPoE.
Network addressing
Each networked computer must have an IP address to identify
itself to other computers. IP address assignments are either
dynamic or static. With a dynamic IP address, your ISP assigns
each computer a different address each time it connects to the
server. When you power down the computer, you release that IP
address allowing it to be reassigned. A static IP address is assigned
to your computer at all times whether or not you are currently
using it. No other computer on the network shares that address.