Re: Windows 7 and Wireshark any release

[Jaap Keuter <jaap.keuter () xs4all nl>]

On 10/26/2010 07:17 PM, Guy Harris wrote:
> On Oct 26, 2010, at 6:45 AM, Giel Oberholster (ZA) wrote:
>
> > I am having problems when using Wireshark with Windows 7.  Whenever I sniff a VOIP G.711A call with Wireshark, the 
> > packets are not seen by Wireshark as G.711A but as UDP. Even if I decode the UDP to RTP things are not working 
> > properly.
> > The data side of things ( I can see the packet loss /Jitter etc.)  are working as expected I can however not listen 
> > to the call.
> > I have tried several releases of Wireshark ( last one I used was 1.40 on Windows 7)
> > When I do the exact same sniff with XP and Wireshark 1.40 – no problem.
> > Something in Windows 7 is treating the sniffed packets differently.
>
> Something on the machine running Windows 7 is causing the sniffed packets to be treated differently from the way 
> they're being treated on the Windows XP machine.  That could be the operating system, but it could also be, for 
> example, the configuration of Wireshark, or the version of Wireshark installed.
>
> Are you running Wireshark 1.4.0 (which is presumably what you meant by "1.40" - there's no version 1.40 of Wireshark) 
> on both machines, or are you running a different version (for example, a recent build from the trunk) on the Windows 
> 7 machine?
>
> Are the protocol preferences settings for RTP the same on both machines?  In particular, is the "Try to decode RTP 
> outside of conversations" checked on both machines?

Hi,

That last tip usually does it. Also, upgrade to Wireshark 1.4.1, it has some 
important VoIP related fixes for you.

Thanks,
Jaap

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