ZyXEL Communications Wireless Gateway Series User Manual

ZyAIR Wireless Gateway Series User’s Guide

NetBIOS Filter Commands L-1

Appendix L

NetBIOS Filter Commands

The following describes the NetBIOS packet filter commands. See the Command Interpreter appendix for
information on the command structure.

Introduction

NetBIOS (Network Basic Input/Output System) are TCP or UDP broadcast packets that enable a computer
to connect to and communicate with a LAN.

For some dial-up services such as PPPoE or PPTP, NetBIOS packets cause unwanted calls.

You can configure NetBIOS filters to do the following :

•  Allow or disallow the sending of NetBIOS packets from the LAN to the WAN.
•  Allow or disallow the sending of NetBIOS packets from the WAN to the LAN.
•  Allow or disallow NetBIOS packets to initiate calls.

Display NetBIOS Filter Settings

Syntax:

sys filter netbios disp

This command gives a read-only list of the current NetBIOS filter modes for a ZyAIR.

Diagram L-1 NetBIOS Display Filter Settings Command Without DMZ Example

The filter types and their default settings are as follows.

Chart L-1 NetBIOS Filter Default Settings

NAME DESCRIPTION

EXAMPLE

LAN to WAN

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

Forward

=============== NetBIOS Filter Status ===============

LAN to WAN:

Forward

WAN to LAN:

Forward

IPSec Packets:

Forward

Trigger Dial:

Disabled