Appendix I Netbios Filter Commands; Table 173 Netbios Filter Default Settings - ZyXEL Communications ZYWALL P1 User Manual

A
P P E N D I X
NetBIOS Filter Commands
The following describes the NetBIOS packet filter commands. See
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 for The ZyWALL.
NetBIOS Display Filter Settings Command Example
=========== NetBIOS Filter Status ===========
Between LAN and WAN: Block
Trigger Dial: Disabled
The filter types and their default settings are as follows.

Table 173 NetBIOS Filter Default Settings

NAME
Between LAN
and WAN
ZyWALL P1 User's Guide
IPSec Packets: Forward
DESCRIPTION
This field displays whether NetBIOS packets are blocked or forwarded
between the LAN and the WAN.
I
Appendix H on page 467
EXAMPLE
Block
473