TripMode TCP out of order bytes reproducing steps

TM.md

Generate a payload.txt file using this Ruby script:

(1..1000000).each{|i| print "#{i} "}

The file will trivially contain "1 2 3 4 5 ..." so that out of order violations are trivial to spot.

10. In one terminal open netcat in listen mode: nc -l 6379
11. In another terminal execute netcat like this: cat payload.txt | nc 127.0.0.1 6379
12. In the first terminal you should see like 20796 20797 20798 20799 20800... instead of 1 2 3 ...
13. Does not happen always, so kill the netcat instances, and GOTO 10 to retry until it happens.

Note: my OSX is not the latest patchlevel, I run 10.13.1

Thanks for TM, it kinda saved my latest weeks of work because at the new office I've no cable connection yet.