ZyXEL Communications 792H - Manual (Page 331)

Prestige 791R G.SHDSL Router
Filter Configuration 28-21
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 28-19 Filtering Ethernet Traffic
28.6.2 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 28-20 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=
device filters=
Output Filter Sets:
protocol filters=
device filters=
2
Press ENTER to Confirm or ESC to Cancel:
Apply filter 2 to
block NETBIOS
traffic from the
LAN
Menu 11.5 - Remote Node Filter
Input Filter Sets:
protocol filters= 3,4,5
device filters=
Output Filter Sets:
protocol filters=
device filters=
Call Filter Sets:
Protocol filters= 1
Device filters=
Enter here to CONFIRM or ESC to CANCEL:
Apply filter 3 to block
Telnet traffic from the
WAN; filter 4 to allow
PPPoE packets only, and
filter 5 to deny FTP traffic
from the WAN.
Apply filter 1 to block
NETBIOS traffic to
the WAN.