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ZyXEL Communications Internet Security Gateway ZyWALL 100 User Manual

Page 340

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ZyWALL 100 Internet Security Gateway

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NetBIOS Filter Commands

The filter types and their default settings are as follows.

NAME DESCRIPTION

DEFAULT

LAN to WAN

This field displays whether NetBIOS packets are blocked or
forwarded from the LAN to the WAN.

Forward

LAN to DMZ

This field displays whether NetBIOS packets are blocked or
forwarded from the LAN to the DMZ.

Forward

IPSec Packets

This field displays whether NetBIOS packets sent through a VPN
connection are blocked or forwarded.

Forward

Trigger dial

This field displays whether NetBIOS packets are allowed to initiate
calls. Disabled means that NetBIOS packets are blocked from
initiating calls.

Disabled

NetBIOS Filter Configuration

Syntax:

sys filter netbios config

where

=

Identify which NetBIOS filter (numbered 0-3) to configure.

0 = LAN to WAN

1 = LAN to DMZ

2 = IPSec Packets

3 = Trigger dial

= For types 0 and 1, use on to enable the filter and block

NetBIOS packets. Use off to disable the filter and forward
NetBIOS packets.

For type 2, use on to block NetBIOS packets from being sent
through a VPN connection. Use off to allow NetBIOS
packets to be sent through a VPN connection.

For type 3, use on to allow NetBIOS packets to initiate calls.
Use off to block NetBIOS packets from initiating calls.

Example commands

Command:

sys filter netbios config 0 on

This command blocks LAN to WAN NetBIOS packets