Appendix P Netbios Filter Commands; Display Netbios Filter Settings - ZyXEL Communications ZyWall 10W User Manual

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 and 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: sys filter netbios disp
This command gives a read-only list of the current NetBIOS filter modes.
Diagram P-1 NetBIOS Display Filter Settings Command
The filter types and their default settings are as follows.
NetBIOS Filter Commands
NetBIOS Filter Commands
=========== NetBIOS Filter Status ===========
Between LAN and WAN: Block
IPSec Packets: Forward
Trigger Dial: Disabled
ZyWALL Series Internet Security Gateway
Appendix P
P-1