U mean LAN i guess ?
But what's about catching UDP traffic going through Inet channels
after escaping a LAN ?
I think somebody should control a routers of hosts to copy UDP packets
with certain IP in/out addresses... But even after that how HE can
reconstruct a speech without info about certain Codec ?
19.08.1999, �� ������:
> 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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� ���������,
AG
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