User Guide

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IRONPORT ASYNCOS 6.3 FOR WEB USER GUIDE
Figure 4-8 System Setup Wizard — Security Tab
2. Choose the Security Services options.
Table 4-8 describes the Security options.
Table 4-8 Security Options in System Setup Wizard
Option Description
L4 Traffic Monitor Choose whether the Layer-4 Traffic Monitor should monitor or block
layer 4 traffic.
The L4 Traffic Monitor detects rogue traffic across all network ports
and stops malware attempts to bypass port 80.
You might choose to monitor traffic when you evaluate the Web
Security appliance, and block traffic when you purchase and use the
appliance.
For more information, see “Configuring the L4 Traffic Monitor” on
page 389.
Acceptable Use
Controls
Choose whether or not to enable Acceptable Use Controls so you can
choose a URL filtering engine, either Cisco IronPort Web Usage
Controls or IronPort URL Filters.
URL filtering engines allow you to control user access based on the
category of a URL in a request. Enable this option when you want to
restrict users from accessing particular types of websites.
Note: If you enable Cisco IronPort Web Usage Controls, the Dynamic
Content Analysis engine is enabled by default. You can edit this setting
after system setup.
For more information, see “URL Filters” on page 267.