Specifications

Chapter 3 Configuring Compex NetPassage 16A
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3.10 Firewall Configuration
Compex NetPassage 16A is specially designed with firewall function to prevent
unauthorized access to or from the network. All messages entering or leaving Compex
NetPassage 16A will pass through the firewall. It will then examines each message and
blocks those that do not meet the specified security criteria. The firewall can be
activated by purchasing an activation key from www.compex.com.sg
or www.cpx.com
website.
Compex NetPassage 16A uses Packet Filtering and Static inspection methods to control
the traffic flowing in and out of the network. This is much better than a normal firewall.
The packets that make it through the filters are sent to the requesting system and the rest
are discarded. Static inspection compares certain key parts of the packet to a database of
trusted information. All information that travels through the firewall is monitored for
specified defining characteristics, and the incoming information is compared to these
characteristics. If the comparison matches, the information is allowed to pass through,
otherwise, it is discarded. SPI Firewall is unlike the normal firewall that only checks the
headers of the packets, it also scrutinize the contents of the packets, ensuring the
integrity of the packets.
Figure 3.10a Configuration on Firewall