Firewall
BAT54-Rail/F..
Release
7.54
06/08
8.3
The BAT Firewall
259
8.3 The BAT Firewall
After general explanations concerning the dangers of the Internet and the
tasks and types of Firewalls, this chapter describes special functions of the
BAT Firewall and concrete configurations.
8.3.1 How the BAT Firewall inspects data packets
The Firewall filters only those data packets out of the entire data stream run-
ning through the IP router of the BAT, for which a special treatment has been
defined.
For BAT devices with VoIP functions that were already integrated or added
in with a software option, the ports required for voice connections are acti-
vated automatically.
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