Date: Thu, 21 Oct 1999 10:36:13 -0500 From: Guy Helmer <ghelmer@scl.ameslab.gov> To: Chris Shenton <cshenton@uucom.com> Cc: darryl@osborne-ind.com, freebsd-questions@FreeBSD.ORG Subject: Re: Freebsd + Netmeeting = Possible ? Message-ID: <Pine.SGI.4.20.9910211028020.1807-100000@demios.scl.ameslab.gov> In-Reply-To: <lfiu40re19.fsf@Samizdat.uucom.com>
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On 21 Oct 1999, Chris Shenton wrote: > On Wed, 20 Oct 1999 11:48:23 -0500, "Darryl Hoar" <darryl@osborne-ind.com> said: > > Darryl> Greetings, I am running Freebsd 3.2 on a gateway machine (ppp > Darryl> -auto -alias isp). I have a couple of Win9x boxes on my lan > Darryl> that use the freebsd box for internet access. The Win9x box > Darryl> needs to use Microsoft Net Meeting for some collabrative work. > Darryl> Unfortunately, I can't choose a different application, as that > Darryl> is out of my control. Anybody do this already ? > > Darryl> I'm stuck. How do I get this to work. > > NetMeeting implements H.323 protocols which bury client and server > information in the payload rather than just leaving them in the > header. > ... > But sorry, I don't have a solution for you unless someone's written a > proxy which tracks the complex port negotiation. I understand Raptor > and Checkpoint now do this in their firewalls but it still presents an > astounding security risk to the end user workstations: giving remote > users with no decent authentication keyboard/mouse access to your > machine and anything it has access to. Some friends of mine started an H.323 gatekeeper which may provide the bits necessary to run NetMeeting through a machine that does NAT (I haven't tried it, and I don't understand the protocols well enough yet to know whether it solves this particular problem). It's available via: http://www.willamowius.de/openh323gk.html A description of H.323 gatekeeper functionality is at: http://www.databeam.com/h323/h323primer.html#gatekeepers Hope this helps, Guy Guy Helmer, Ph.D. Candidate, Iowa State University Dept. of Computer Science Research Assistant, Ames Laboratory --- ghelmer@scl.ameslab.gov Research Assistant, Dept. of Computer Science --- ghelmer@cs.iastate.edu Teaching Assistant, ComS 652 Distributed Operating Systems http://www.cs.iastate.edu/~ghelmer To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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