sys filter netbios disp

ZyWALL 2 and ZyWALL 2WE

Appendix O

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 the sending of NetBIOS packets through VPN connections.

•Allow or disallow NetBIOS packets to initiate calls.

Display NetBIOS Filter Settings

Syntax:

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

 

===============

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

 

 

 

 

LAN to

WAN:

Forward

 

 

WAN to

LAN:

Forward

 

 

IPSec Packets:

Forward

 

 

Trigger Dial:

Disabled

 

 

 

 

 

 

 

 

 

 

 

Diagram O-1 NetBIOS Display Filter Settings Command Example

Syntax: sys filter netbios disp

The filter types and their default settings are as follows.

NetBIOS Filter Commands

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