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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