ZyWALL 10/50 Internet Security Gateway

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

Forward

 

 

 

forwarded from the LAN to the WAN.

 

 

 

 

 

 

 

LAN to DMZ

 

This field displays whether NetBIOS packets are blocked or

Forward

 

 

 

forwarded from the LAN to the DMZ.

 

 

 

 

 

 

 

IPSec Packets

 

This field displays whether NetBIOS packets sent through a VPN

Forward

 

 

 

connection are blocked or forwarded.

 

 

Trigger dial

 

This field displays whether NetBIOS packets are allowed to initiate

Disabled

 

 

 

calls. Disabled means that NetBIOS packets are blocked from

 

 

 

 

initiating calls.

 

 

 

 

 

 

NetBIOS Filter Configuration

 

 

 

Syntax:

sys filter netbios config <type> <onoff>

 

 

where

 

 

 

 

 

 

 

<type>

=

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

 

 

 

 

 

0 = LAN to WAN

 

 

 

 

 

 

1 = LAN to DMZ

 

 

 

 

 

 

2 = IPSec Packets

 

 

 

 

 

 

3 = Trigger dial

 

 

 

<onoff>

=

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

X

NetBIOS Filter Commands