ZyXEL P-314Plus User Guide - Page 124
Applying a Filter and Factory Defaults, LAN traffic
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Prestige 314 PLUS Broadband Sharing Gateway with 4-Port Switch Figure 7-15 Protocol and Device Filter Sets 7.5 Applying a Filter 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 to prevent NetBIOS traffic from triggering calls and block incoming telnet, FTP and HTTP connections. 7.5.1 LAN traffic You seldom need to filter LAN traffic; however, the filter sets may be useful to block certain packets, reduce traffic and prevent security breaches. Go to menu 3.1 (shown below) 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. Input filter sets filter incoming traffic to the Prestige and Output filter sets filter outgoing traffic from the Prestige. A factory default set, NetBIOS_LAN, is inserted in protocol filters field under Input Filter Sets in menu 3.1 to block NetBIOS traffic to the Prestige from the LAN. 7-18 Filter Configuration