ZyXEL p-662h-61 Guia Do Utilizador

Prestige 662HW Series User’s Guide

Chapter 36 Filter Configuration

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You seldom need to filter Ethernet traffic; however, the filter sets may be useful to block 
certain packets, reduce traffic and prevent security breaches. Go to menu 3.1 (shown next) and 
type the number(s) of the filter set(s) that you want to apply as appropriate. You can choose up 
to four filter sets (from twelve) by typing their numbers separated by commas, for example, 3, 
4, 6, 11. The factory default filter set, 

NetBIOS_LAN

, is inserted in the protocol filters field 

under Input Filter Sets in menu 3.1 in order to prevent local NetBIOS messages from 
triggering calls to the DNS server.

Figure 218   Filtering Ethernet Traffic

Go to menu 11.5 (shown next) and type the number(s) of the filter set(s) as appropriate. You 
can cascade up to four filter sets by typing their numbers separated by commas. The factory 
default filter set, 

NetBIOS_WAN

, is inserted in the protocol filters field under Call Filter Sets 

in menu 11.5 to block local NetBIOS traffic from triggering calls to the ISP.

Figure 219   Filtering Remote Node Traffic

Note that call filter sets are visible when you select PPPoA or PPPoE encapsulation.  

Menu 3.1 – LAN Port Filter Setup

 

Input Filter Sets:

protocol filters= 3

device filters=

Output Filter Sets:

protocol filters=

device filters=

                   

                   

Press ENTER to Confirm or ESC to Cancel: 

Menu 11.5 - Remote Node Filter

          Input Filter Sets:

            protocol filters= 6

            device filters=

          Output Filter Sets:

            protocol filters= 2

            device filters=

          Call Filter Sets:

            Protocol filters=

            Device filters=

Enter here to CONFIRM or ESC to CANCEL: