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Verifying External Connectivity
31
Chapter 3: Configuring the Device
The device applies firewall policies, which can contain content filtering and
Intrusion Detection and Prevention (IDP) components, to the traffic that passes
the Screen filters from one zone to another. By default, no traffic is permitted to
pass through the device from one zone to another. To permit traffic to cross the
device from one zone to another, you must create a policy that overrides the
default behavior.
To set ScreenOS Screen options for a zone:
WebUI
Screening > Screen: Select the zone to which the options apply. Select the
Screen options that you want, then click
Apply
:
CLI
set zone
zone
screen
option
save
For more information about configuring the network security options available in
ScreenOS, refer to the
Attack Detection and Defense Mechanisms
volume of the
Concepts & Examples ScreenOS Reference Guide
.
Verifying External Connectivity
To verify that workstations in your network can access resources on the Internet,
start a browser from any workstation in the network and browse to
Restarting the Device
You may need to restart the device in order to implement new features, such as
when you change between route and transparent mode or when you add new
license keys.
The following sections describe two methods of restarting the device:
“Restarting the Device with the CLI Reset Command” on page 31
“Restarting the Device with the WebUI” on page 32
Restarting the Device with the CLI Reset Command
To restart the device with the CLI reset command:
1.
Establish a console session with the device as described in “Using a Console
Connection” on page 28 or “Using Telnet” on page 30.
At a Windows workstation, the easiset way of opening a console connection is
to choose
Start > Run
and enter
telnet
ip_address
.
The device prompts you for your login and password.