ZyXEL ADSL2+ User Manual download pdf (Page 191)

Prestige 660RU-Tx Series User’s Guide

Chapter 22 Filter Configuration 190

22.7 Applying Filters and Factory Defaults

This section shows you where to apply the filter(s) after you design it (them). Sets of factory

default filter rules have been configured in menu 21 (but have not been applied) to filter

traffic.

22.7.1 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, 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 128 Filtering Ethernet Traffic

22.7.2 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.

Table 57 Filter Sets Table

FILTER SETS DESCRIPTION

Input Filter Sets: Apply filters for incoming traffic. You may apply protocol or device filter rules. See

earlier in this chapter for information on filters.

Output Filter Sets: 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.

Call Filter Sets: 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= 3

device filters=

Output Filter Sets:

protocol filters=

device filters=

Press ENTER to Confirm or ESC to Cancel:

Apply filter 3 to block

NETBIOS traffic from the

LAN.

1 2 ... 186 187 188 189 190 191 192 193 194 195 196 ... 285 286

No comments

ZyXEL ADSL2+ User Manual Page 191