Proxicast LAN-Cell 2 Guia do Utilizador descarregar pdf (Página 512)

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Chapter 35 Filter Configuration

LAN-Cell 2 User’s Guide

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" If you do not activate the firewall, it is advisable to apply filters.

35.6.1 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 LAN-Cell and output filter sets filter outgoing traffic from the LAN-Cell. For

PPPoE or PPTP encapsulation, you have the additional option of specifying remote node call

filter sets.

Figure 331 Filtering LAN Traffic

35.6.2 Applying DMZ Filters

DMZ traffic filter sets may be useful to block certain packets, reduce traffic and prevent

security breaches. Go to menu 5.1 (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 LAN-Cell and output filter sets filter outgoing traffic from the LAN-Cell. The

LAN-Cell already has filters to prevent NetBIOS traffic from triggering calls, and block

incoming telnet, FTP and HTTP connections.

Figure 332 Filtering DMZ Traffic

Menu 3.1 - LAN Port Filter Setup

Input Filter Sets:

protocol filters=

device filters=

Output Filter Sets:

protocol filters=

device filters=

Press ENTER to Confirm or ESC to Cancel:

Menu 5.1 - DMZ Port Filter Setup

Input Filter Sets:

protocol filters=

device filters=

Output Filter Sets:

protocol filters=

device filters=

Press ENTER to Confirm or ESC to Cancel:

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