SoftPerfect Personal Firewall is a free network
firewall designed to protect your PC against attacks
from the Internet or via a local area network.
SoftPerfect Personal Firewall offers customizable
security using user-defined rules for packet
filtering. It works at a low level and also allows you
to create rules based on non-IP protocols such as ARP.

SoftPerfect Personal Firewall supports multiple
network adapter configurations. This allows you to
apply a rule, for example, for just a modem connection
or you could apply separate rules for each system
interface. With a flexible filtering system, trusted
MAC address checking feature and separate network
adapter configuration you can even use it on a router
or a server.

SoftPerfect Personal Firewall has a learning mode,
which prompts you for required actions when it detects
an unknown packet. This helps you to create customized
rules quickly. The program is easy to use, comes with
a set of predefined rules and it is completely free.
Additional features include password protection,
logging and more.

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