Applying Filters And Factory Defaults; Ethernet Traffic; Remote Node Filters; Figure 9-10 Filtering Ethernet Traffic - ZyXEL Communications Prestige 202 User Manual

Prestige 202 ISDN Router
9.4

Applying Filters and Factory Defaults

This section shows you where to apply the filter(s) after you design it (them). Two sets of factory
default filter rules have been configured in Menu 21 to prevent NetBIOS traffic from triggering
calls (see Figure 9-3 Menu 21

9.4.1 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 enter 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 entering their numbers separated by commas, e.g., 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.

9.4.2 Remote Node Filters

Go to Menu 11.5 (shown next) 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, is inserted in protocol filters field under Call Filter Sets in Menu 11.5
to block local NetBIOS traffic from triggering calls to the ISP.
9-14
Filter Set Configuration).
–
Menu 3.1 - General Ethernet Setup
Input Filter Sets:
protocol filters=
device filters=
Output Filter Sets:
protocol filters=
device filters=
Press ENTER to Confirm or ESC to Cancel:

Figure 9-10 Filtering Ethernet Traffic

2
Factory
Default
Filter
Filter Configuration