Watchguard Firebox X20E Reference Manual page 60

ARP tables
A table of active ARP addresses on a computer.
ascending
A method of ordering a group of items from lowest to highest, such as from A
to Z.
authentication
Authentication is a method of mapping a username to a workstation IP
address, allowing the tracking of connections based on name rather than IP
address. With authentication, it doesn't matter what IP address is used or
from which machine a person chooses to work.
backbone
A term often used to describe the main network connections composing the
Internet.
Bandwidth Meter
A monitoring tool that provides a real-time graphical display of network
activities across a Firebox. Formerly known as the Mazameter.
bastion host
A computer placed outside a firewall to provide public services (such as
WWW and FTP) to other Internet sites. The term is sometimes generalized to
refer to any host critical to the defense of a local network. In WatchGuard
documentation, also called the Optional network.
bitmask
A pattern of bits for an IP address that determines how much of the IP address
identifies the host and how much identifies the network.
blocked port
A security measure in which a specific port associated with a network service
is explicitly disabled, blocking users outside the firewall from gaining access
to that service port. A blocked port takes precedence over any service settings
that are generally enabled.
blocked site
An IP address outside the Firebox explicitly blocked so it cannot connect with
hosts behind the Firebox. Blocked sites can be manual and permanent, or
automatic and temporary.
boot up
To start a computer.
Branch Office Virtual Private Networking (BOVPN)
BOVPN creates a secure tunnel over an unsecure network, between two
networks that are protected by the WatchGuard LiveSecurity System, or
between a WatchGuard Firebox and an IPSec-compliant device. It allows you
to connect two or more locations over the Internet while protecting the
resources on the Trusted and Optional networks.
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