Wireshark · Ethereal-users: [Ethereal-users] Error option -o

[Débora Pastor Antolín <deb_pastor@xxxxxxxx>]

Hi,

 

My ethereal version is the 0.10.13. I open an Ms-2 window in Windows XP  to execute tethereal with the option -o to be able to see the packet lenght of each packet from a pcap file. The problem is that when I try to obtain the protocols with the same command ( I execute:

 

tethereal -o "column.format: protocol,%p" -r 01.pcap > output

 

there is an error, which says:

 

"File column-utils.c:line 208:assertion failed_(cinfo->colfirst[el]>=0), aborting...

 

Any suggestions?

Thanks!

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