ZyXEL Communications 128L user manual Filter Configuration, About Filtering

Models: 128L

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9 Filter Configuration

About Filtering

Your Prestige uses filters to decide whether or not to allow passage of a data packet and/or to make a call over the ISDN line. There are two types of filters involved: incoming data filters and outgoing data filters. Data filters screen the data to determine if the packet should be allowed to pass.

Figure 9-1 Outgoing packet filtering Process

For incoming packets, your Prestige applies data filters only. Packets are processed depending upon whether a match is made. Your Prestige allows you to customize the filter sets that you wish to use. The following sections describe how to configure your Prestige filter sets.

Filter Configuration 67

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ZyXEL Communications 128L user manual Filter Configuration, About Filtering