ZyXEL Communications P-2602HW-63C Guía de usuario Pagina 367

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Prestige 2602H/HW Series User’s Guide
Chapter 34 Filter Configuration 367
34.7.1 Ethernet Traffic
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 213 Filtering Ethernet Traffic
34.7.2 Remote Node Filters
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 214 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:
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