Hi Wiresharkers,
I’m a newbie so please pardon me if I describe my problem
clumsily.
I’m using Wireshark version: “1.3.6FpgaTxOutput
(SVN Rev 32781 from /trunk)”
I do the next:
1. I inject a perfectly clean MPEG stream over UDP
into a PC with Ethernet 1Gigabit interface network card.
(I know it’s clean for sure, and anyway I also
checked by some reliable testing tools such as StreamXpert running on the same
PC, connected to the same interface port)
2. I close all windows, no program is running on the PC. The
UDP stream continues flowing in all the time.
3. I open Wireshark, set a capture-file and start recording
(I tried with and without filtering only the relevant IP).
- I choose the correct interface port for
sure (Dektec 1Gigabit-Ethernet network card)
- I choose to capture in Promiscuous mode
- I write the name of the file to be
recorded into
- I uncheck the “update list of packets in
real time” checkbox
- “Enable MAC…”:yes, “Enable Network…”:no,
“Enable transport…”:yes.
- the I press “start”.
4. From the resulting capture-file I’m striping the MPEG
stream out of the UDP encapsulation. (did this a hundred times, it’s 100%
reliable)
5. in the resulting MPEG stream I get “Continuity-Counter
Errors” which means packets were lost or mixed with another stream.
6. Actually, instead of steps 4-5 I later on simply ran
Wireshark’s MPEG-TS-checker and indeed the Wireshark itself reported the same
CC Errors!
Have you ever encountered such a problem?
Could it be that Wireshark is too weak to record a ~50Mbps
stream into a capture file?
What should I do??
Thanks in advance,
Roni
