Prestige 662H/HW Series User’s Guide

36.7.1 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 218 Filtering Ethernet Traffic

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:

36.7.2 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.

Figure 219 Filtering Remote Node Traffic

Menu 11.5 - Remote Node Filter

Input Filter Sets: protocol filters= 6 device filters=

Output Filter Sets: protocol filters= 2 device filters=

Call Filter Sets: Protocol filters= Device filters=

Enter here to CONFIRM or ESC to CANCEL:

Note that call filter sets are visible when you select PPPoA or PPPoE encapsulation.

Chapter 36 Filter Configuration

374