WatchGuard Technologies SOHO 6.1, SOHO 6 How Does a Firewall Work?

User Guide 3
How Does a Firewall Work?
How Does a Firewall Work?
Fundamentally, a firewall is a way of distinguishing between, as
well as protecting, “us” and “them”. On the external side of your
SOHO 6 firewall is the entire Internet. The Internet offers many
resources such as the Web, email, and video/audio conferencing. It
also presents dangers to the privacy and security of your
computer. On the trusted side of your SOHO6 firewall are all the
appliances you want to protect from these dangers. As is
illustrated in the image below, the SOHO6 physically separates
your trusted network from the Internet.
Using rules or policies outlined in Chapter 3: “Configure Incoming
and Outgoing Services” on page 62, the WatchGuard SOHO6
evaluates all traffic between the external network (the Internet)