I'm not certain, but I believe that WFW and NT do this through NetBIOS over
TCP/IP (Microsoft's NBT protocol). If so, the port numbers for this service
are:
nbname 137/udp
nbdatagram 138/udp
nbsession 139/tcp
To: cheer @ isisph.com (Christopher D. Heer) @ Internet
cc: firewalls @ GreatCircle.COM @ Internet (bcc: Kenneth Smith)
From: rschlientz @ smtpgate.gstone.com (Schlientz Rick) @ Internet @ WORLDCOM
Date: 01/12/95 10:14:49 AM CST
Subject: Re: FW: PC Take-Over -- reply
Christopher D. Heer wrote:
> This is scary, too, because WFW can use any protocol -- including
> TCP/IP -- as its own. I don't know if you still can, but you used to
> be able to mount Microsoft's ftp server as a WFW drive over
> the Internet. . . :(
I'm more than a litle concerned to hear this.
Apparently the ftp site is on the "dirty" side of the firewall, so it is
accessable to the internet.
Is there some way to filter the packets so others can't do this to us? Does
anyone know the port(s) to block to prevent this from happening?
Where can I get more information on this?
Thanks in advance.
================================================================
| Rick Schlientz email: rschlientz @
gstone .
com
| Network / Systems Administrator
|
| /\/\/\ GreyStone Technology, Inc.
| / /\/\ \ 15010 Avenue of Science, Suite 200
| \ \/\/ / San Diego, CA 92128
| \/\/\/ Phone: (619)675-7800 Ext. 148 FAX: (619)675-7808
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