I think most of today's corp Nets do use switched...
But yes, I have seen this does as long as you can get all the packets.
Danny
On Thu, 19 Aug 1999, Pasi Kovanen wrote:
>
> Just run an H323 analyzer (software-based will do fine) on the LAN in
> which the call is done. It will grab all RTP-packetized UDP/IP-packets
> (in which format audio and video is sent in H.323). With the RTP headers
> the analyzer can reconstruate every call made in the LAN.
>
> If you are using switching hubs the things get much harder, but in the
> most common case, shared LAN with simple hubs, wiretapping is very easy.
>
> --
> Pasi Kovanen (E-mail: [EMAIL PROTECTED], Tel: +358-40-518 3460)
> Sonera Solutions Ltd., Laserkatu 6, 53850 LAPPEENRANTA, FINLAND
>
> ----- Original Message -----
> From: <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, August 19, 1999 9:26 AM
> Subject: Re: [NetMeeting] Security
>
>
> >
> > May I ask how you would "listen in"
> > on the calls then? By rerouting the packets and spoofing an IP?
> > That's the only way I can think of.
> > That and an H323 analyzer.
> > Danny
> >
> > On Thu, 19 Aug 1999, Pasi Kovanen wrote:
> >
> > >
> > > Hi Paul,
> > >
> > > Wiretapping the calls in your LAN is a trivial task.
> > > Security can be obtained by using IPSec or similar
> > > technology for both / all endpoints.
> > >
> > > Regards,
> > > Pasi
> > >
> > > --
> > > Pasi Kovanen (E-mail: [EMAIL PROTECTED], Tel: +358-40-518 3460)
> > > Sonera Solutions Ltd., Laserkatu 6, 53850 LAPPEENRANTA, FINLAND
> > >
> > > ----- Original Message -----
> > > From: <[EMAIL PROTECTED]>
> > > To: <[EMAIL PROTECTED]>
> > > Sent: Wednesday, August 18, 1999 9:21 AM
> > > Subject: [NetMeeting] Security
> > >
> > >
> > >
> > > I have been asked more than once "How secure are NetMeeting audio/video
> > > calls?"
> > >
> > > We have our own ILS server, which is not on the Internet - users dial in
> via
> > > Windows NT RAS. We do not use the 'security' options in NM3 as we need
> to
> > > use the audio/video features, not just data. What are the chances of
> 'wire
> > > tapping' these calls?
> > >
> > > Paul Mallett, MCP
> > >
> > >
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