User`s guide

ZyAIR G-1000 Access Point User’s Guide
NetBIOS Filter Commands I-1
Appendix I
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 between the LAN and 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 4 NetBIOS Display Filter Settings Command Without DMZ Example
The filter types and their default settings are as follows.
Chart 19 NetBIOS Filter Default Settings
NAME DESCRIPTION EXAMPLE
Between LAN
and WAN
This field displays whether NetBIOS packets are blocked or forwarded
between the LAN and the WAN.
Forward
=========== NetBIOS Filter Status ===========
Between LAN and WAN: Forward
IPSec Packets: Forward
Trigger Dial: Disabled