User guide

Configuring Incoming Services
User Guide 89
the trusted network. This section also has examples of how to use
the optional network.
Other sections show how to use the Blocked Sites feature and other
firewall options:
• Responding to pings
• Creating log messages for all outgoing traffic
• FTP access to the Firebox
•SOCKS
• Changing the Firebox’s hardware MAC address
Configuring Incoming Services
You can control the traffic that goes to the trusted or optional net-
works from the external network using incoming services. Usually,
the Internet is the external network.
The Firebox® X Edge supplies a list of frequently used services you
can use to easily allow the most used traffic categories into your
trusted or optional network. You can also create custom services if
you must allow traffic that is not in the list of frequently used ser-
vices.
You must be careful when you allow incoming services. When you
allow an incoming service, you open the protected networks behind
the Edge to more traffic, which increases risk. Make sure that you
compare the value of added access to the security risk.
N OTE N OTE
You can set the incoming services in this section to allow traffic
that starts on the external network to flow to a computer on the
trusted network or to a computer on the optional network. These
services do not affect traffic between the trusted and optional
networks.