ZyXEL P-314Plus User Guide - Page 107

Filter Configuration, About Filtering

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Prestige 314 PLUS Broadband Sharing Gateway with 4-Port Switch Chapter 7 Filter Configuration This chapter shows you how to create and apply filter(s). 7.1 About Filtering Your Prestige uses filters to decide whether to allow passage of a data packet and/or to make a call. There are two types of filter applications: data filtering and call filtering. Filters are subdivided into device and protocol filters, which are discussed later. Data filtering screens the data to determine if the packet should be allowed to pass. Data filters are divided into incoming and outgoing filters, depending on the direction of the packet relative to a port. Data filtering can be applied on either the WAN side or the Ethernet side. Call filtering is used to determine if a packet should be allowed to trigger a call. Remote node call filtering is only applicable when using PPTP or PPPoE encapsulation (see Figure 5-7). Outgoing packets must undergo data filtering before they encounter call filtering as shown in the following figure. Filter Configuration 7-1

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Prestige 314 PLUS Broadband Sharing Gateway with 4-Port Switch
Filter Configuration
7-1
Chapter 7
Filter Configuration
This chapter shows you how to create and apply filter(s).
7.1
About Filtering
Your Prestige uses filters to decide whether to allow passage of a data packet and/or to make a call. There are
two types of filter applications: data filtering and call filtering. Filters are subdivided into device and protocol
filters, which are discussed later.
Data filtering screens the data to determine if the packet should be allowed to pass. Data filters are divided
into incoming and outgoing filters, depending on the direction of the packet relative to a port. Data filtering
can be applied on either the WAN side or the Ethernet side. Call filtering is used to determine if a packet
should be allowed to trigger a call. Remote node call filtering is only applicable when using
PPTP or PPPoE
encapsulation (
see Figure 5-7).
Outgoing packets must undergo data filtering before they encounter call
filtering as shown in the following figure.