ZyXEL Communications Prestige 642R Series, User Manual, Page: 117 / 163

Prestige 642R Series ADSL Router
Filter Configuration 8-21
8.5.2 Remote Node Filters
Go to Menu 11.5 (shown below – note that call filter sets are only present for PPPoE encapsulation) and
enter the number(s) of the filter set(s) as appropriate. You can cascade up to four filter sets by entering their
numbers separated by commas. The factory default filter set, NetBIOS_WAN, can be applied in Menu 11.5
to block local NetBIOS traffic from triggering calls to the ISP (when you are using
PPPoE encapsulation
only). Enter “1” in the protocol filters field under Call Filter Sets when using PPPoE encapsulation and in
protocol filters under Output Filter Sets – protocol filters when using Ethernet encapsulation . Filter set
“3”, Telnet_WAN, blocks telnet connections from the WAN Port to help prevent security breaches. Filter
set “4”, PPPoE, blocks PPP connections from the WAN Port. Apply them as shown in the following figure.
Figure 8-18 Filtering Remote Node Traffic (PPPoE Encapsulation)
Menu 11.5 - Remote Node Filter
Input Filter Sets:
protocol filters= 3
device filters=
Output Filter Sets:
protocol filters= 4
device filters=
Call Filter Sets:
protocol filters= 1
device filters
=
Enter here to CONFIRM or ESC to CANCEL:
Apply Default
Filters 1, 3 and 4
here. Enter 1 in
protocol filters
under Output
Filter Sets when
using Ethernet
encapsulation
.