ICMP sequence number should be incremented in case of multiple frames generated by Ostinato

[GoogleCodeExporter]

What steps will reproduce the problem?
1. define the format for ICMP
2. it is not possible to set the sequence number to incremental which is 
necessary to differ between frames


What is the expected output? What do you see instead?
that ICMP becomes a unique frame identified by the ICMP sequence number

What version and revision of the product are you using (available in the
About dialog)? On what operating system?
0.5.1

Please provide any additional information below.

Original issue reported on code.google.com by gregor.d...@gmail.com on 8 Oct 2013 at 3:23