Remote Node Filters; Figure 7-16 Filtering Lan Traffic; Figure 7-17 Filtering Remote Node Traffic - ZyXEL Communications ZyWALL 10 User Manual

ZyWALL 10 Internet Security Gateway

7.6.2 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 or PPTP
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", TEL_FTP_WEB_WAN, blocks telnet, FTP and web connections from the
WAN Port to help prevent security breaches. Apply them as shown in the following figure.
7-18
Menu 3.1 – LAN Port Filter Setup
Input Filter Sets:
protocol filters= 2
device filters=
Output Filter Sets:
Protocol filters=
device filters=
Press ENTER to Confirm or ESC to Cancel:

Figure 7-16 Filtering LAN Traffic

Menu 11.5 - Remote Node Filter
Input Filter Sets:
protocol filters= 3
device filters=
Output Filter Sets:
protocol filters= 1
device filters=
Call Filter Sets:
protocol filters= 1
=
device filters
Enter here to CONFIRM or ESC to CANCEL:

Figure 7-17 Filtering Remote Node Traffic

Apply
Default Filter
2 here.
Apply Default
Filters 1 and 3
here. Enter 1 in
protocol filters
under Output
Filter Sets when
using Ethernet
encapsulation
and under Call
Filter Sets when
using PPPoE or
PPTP
Encapsulation.
Filters