ZyXEL Communications G.SHDSL.bis 4-port Security Gateway P-793H - Manual (Page 312)

P-793H User’s Guide
312 Chapter 30 Filter Configuration
30.6.1 Applying LAN Filters
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 ZyXEL Device and output filter sets filter outgoing traffic from the ZyXEL
Device.
Figure 193 Filtering LAN Traffic
30.6.2 Applying Remote Node Filters
Go to menu 11.5 (shown below – note that call filter sets are only present for PPPoA or 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 ZyXEL Device already
has filters to prevent NetBIOS traffic from triggering calls, and block incoming telnet, FTP
and HTTP connections.
Figure 194 Filtering Remote Node Traffic
Menu 3.1 - LAN Port Filter Setup
Input Filter Sets:
protocol filters=
device filters=
Output Filter Sets:
protocol filters=
device filters=
Menu 11.5 - Remote Node Filter
Input Filter Sets:
protocol filters=
device filters=
Output Filter Sets:
protocol filters=
device filters=
Call Filter Sets:
protocol filters=
device filters=