Wireshark · Ethereal-users: RE: [Ethereal-users] Not seeing RTP or RTCP traffic on Win2K

[Joseph Grecco <greccoj@xxxxxxxxxxxxx>]

Thanks to everyone for the responses.

>> For some reason I don't see any RTP and RTCP protocol traffic (even
labeled
>> as UDP). I set up an RTP session on a local machine (both ends on the
same
>> machine as ethereal) and I don't seem to capture the messages I'm looking
>> for.

>If the packets show up, but are just shown as UDP, then the response you
>got was correct.

>However, if "even labeled as UDP" means you're not seeing the packets at
>all, then it probably means that you're not capturing on the loopback
>device - if both ends are on the same machine, the packets will probably
>go over an internal loopback interface rather than over an Ethernet or
>other "real" interface.  (Yes, even if you're not using 127.0.0.1 as the
>source or destination address.)

>On other OSes, such as Solaris and Windows, you can't capture on the
>loopback interface, so you won't be able to capture traffic between two
>processes on the same machine; such is life.

I am using Windows2K when I moved one of the apps to another machine I was
able to capture and decode everything.

Thanks again

Joe