ZyXEL Communications 310 7.5Applying a Filter and Factory Defaults, 7.5.1 LAN Traffic, protocol filters, Input Filter Sets, Figure 7-16Filtering LAN Traffic

Prestige 310 Broadband Sharing Gateway

Figure 7-15 Protocol and Device Filter Sets

7.5Applying 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, for example, 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.

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:

Apply factory default filters here.

Figure 7-16 Filtering LAN Traffic

Filter Configuration 7-17