P314 Broadband Sharing Gateway with
7.5.2 Remote Node Filters
Go to Menu 11.5 (shown below – note that call filter sets are only present for PPPoE encapsulation) 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, can be applied in Menu 11.5 to block local NetBIOS traffic from triggering calls to the ISP (when you are using PPPoE encapsulation only). Enter “1” in the protocol filters field under Call Filter Sets when using PPPoE encapsulation and in protocol filters under Output Filter Sets – protocol filters when using Ethernet encapsulation. Filter set “3”, Telnet_WAN, blocks telnet connections from the WAN Port to help prevent security breaches. Filter set “4”, FTP_WAN, blocks FTP connections from the WAN Port. Apply them as shown in the following figure.
Menu 11.5 - Remote Node Filter
Input Filter Sets: protocol filters= 3
device filters= Output Filter Sets:
protocol filters= 1
device filters= Call Filter Sets:
protocol filters= 1 device filters=
Enter here to CONFIRM or ESC to CANCEL:
Apply Default Filters 1 and 3 here. Enter 1 in protocol filters under Output Filter Sets when using Ethernet encapsulation and under Call Filter Sets when using PPPoE Encapsulation.
Figure 7-15 Filtering Remote Node Traffic
Filter Configuration |