Lan Traffic; Remote Node Filters; Figure 7-14 Filtering Lan Traffic - ZyXEL Communications Prestige 316 User Manual

Prestige 316 Broadband Sharing Gateway/Wireless LAN

7.5.1 LAN Traffic

LAN traffic filter sets may be useful to block certain packets, reduce traffic and prevent security breaches.
Go to Menu 3.1 (shown next) 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. The factory default set, NetBIOS_LAN, can be inserted in the Protocol
Filters field under Input Filter Sets in Menu 3.1 to block NetBIOS traffic to the Prestige from the LAN.
Press ENTER to Confirm or ESC to Cancel:

7.5.2 Remote Node Filters

Go to Menu 11.5 (shown next – note that call filter sets are only present for PPTP/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 PPTP/PPPoE
encapsulation only). Enter "1" in the protocol filters field under Call Filter Sets when using PPTP/PPPoE
encapsulation and in protocol filters field under Output Filter Sets when using Ethernet encapsulation.
Filter set "3", Telnet_FTP_WAN, blocks telnet and FTP connections from the WAN Port to help prevent
security breaches. Apply them as shown in the following figure.
7-18
Menu 3.1 – LAN Port Filter Setup
Input Filter Sets:
protocol filters= 2
device filters=
Output Filter Sets:
protocol filters=
device filters=

Figure 7-14 Filtering LAN Traffic

Apply default
filter 2 here.
Filter Configuration