Dear colleagues, Emile Aben and Geoff Huston wrote an article an article about the behaviour of the Linux implementation of TCP, and looked at the way in which TCP establishes a connection. You can read it on RIPE Labs: https://labs.ripe.net/Members/gih/the-curious-case-of-the-crooked-tcp-handsh... Kind regards, Mirjam Kuehne RIPE NCC