Specifications

Chapter 3 Configuring Compex NetPassage 16A
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Security level
The level of security that you have chosen (low, medium, high) will determine how
many of these threats can be stopped by firewall. The highest level of security would be
to simply block almost everything. You can restrict the traffic flows through the firewall
so that only certain information, such as email, can get through.
Log Information
Different protocols served differently for filtering purposes:
TCP (Transport Control Protocol) is used to rebuild information that travels over the
Internet.
UDP (User Datagram Protocol) is used for the information that requires no response,
such as streaming audio and video.
ICMP (Internet Control Message Protocol) is used by Compex NetPassage 16A to
exchange the information with other routers.
IGMP (Internet Group Management Protocol) is used to establish host memberships in
particular multicast groups on a single network.
If you select any of packets from the Accepted section, these received packets which
has passed the filtering rules will be displayed in the firewall log section – figure 3.11a.
This also applies to the Denied section.