[isalist] Re: Netbois Name Requests from my external Network Interface address

  • From: William T Holmes <wth1@xxxxxxxxxxx>
  • To: "isalist@xxxxxxxxxxxxx" <isalist@xxxxxxxxxxxxx>
  • Date: Wed, 28 Jan 2009 11:49:00 -0500

http://www.ISAserver.org
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Hi Jim,

Thanks for this.

Bill

-----Original Message-----
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On 
Behalf Of Jim Harrison
Sent: Friday, January 09, 2009 11:03 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Netbois Name Requests from my external Network Interface 
address

http://www.ISAserver.org
-------------------------------------------------------

What you see has nothing whatsoever to do with those bindings.

HKLM\System\CurrentControlSet\Services\NetBT\Parameters
Name: NodeType
Type: DWORD
Value: 2

If it doesn't exist, create it and give it a value of 2.
Reboot the server.
All gone bye-bye; cya...

This happens because Windows operates as a M- or H-node by default (depends on 
the installation process and network detection logic).  By adding this value, 
you change it to a peer-node, which will not use NB name broadcasts.

Name resolution failures return much more quickly (don't have to wait for bcst 
cycles) and ISA doesn't have to waste time blocking and logging these packets.

-----Original Message-----
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On 
Behalf Of William T. Holmes
Sent: Thursday, January 08, 2009 4:18 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Netbois Name Requests from my external Network Interface 
address

Hello,



I have a continuous barrage of netbios name requests coming from my external 
network interface on my ISA server. These are being denied but I'm not sure why 
they are occurring in the first place. The interface does not have either the 
Client For Microsoft Networks or File and Printer Sharing Enabled. Is it normal 
for this traffic to occur from the external Network Interface?



Thanks Bill

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