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Traceroutes from pinger to pingervm and from pingervm to pinger.
Analysis of Fixed address results
Analysis of measurements from March 10, 2015 16:30 through March 13, 2015 23:45, i.e. approximately 3000 pings, showed a difference (pinger>pingervmfix - pingervmfix>pingert) in minimum RTT of of ~ 0.045 +- 0.02 ms