ZyXEL Communications P-312 manual Remote Node Filters, Filtering LAN Traffic

P312 Broadband Security Gateway

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 Default Filter 2 here.

Figure 7-16 Filtering LAN Traffic

7.6.2 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 or PPTP 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”, TEL_FTP_WEB_WAN, blocks telnet, FTP and web connections from the WAN Port to help prevent security breaches. 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 or

PPTP Encapsulation.

Figure 7-17 Filtering Remote Node Traffic

7-18 Filters