Ethernet Traffic; Remote Node Filters; Figure 17-16 Filtering Ethernet Traffic; Table 17-5 Filter Sets Table - ZyXEL Communications Prestige 645R-A Series User Manual

Prestige 645R-A Series User's Guide
FILTER SETS
Input Filter Sets:
Output Filter Sets:
Call Filter Sets:

17.6.1 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, 2, 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.

17.6.2 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.
17-18

Table 17-5 Filter Sets Table

Apply filters for incoming traffic. You may apply protocol or device
filter rules. See earlier in this chapter for information on filters.
Apply filters for traffic leaving the Prestige. You may apply filter rules
for protocol or device filters. See earlier in this section for
information on types of filters.
Apply filters to decide if a packet should be allowed to trigger a call.
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 17-16 Filtering Ethernet Traffic

DESCRIPTION
Apply filter 2 to
block NETBIOS
traffic from the
LAN.
Filter Configuration