ACK returned when SYN received instead of SYNACK when reusing the same port

Solution In Progress - Updated -

Issue

  • client application receives an ACK segment instead of a SYN ACK when making a connection using the same client port number as a previous connection
  • previous connection is in the TIME-WAIT state
  • connection is for a remote host with the current host acting as a transparent proxy

Environment

  • Red Hat Enterprise Linux 6.4 (2.6.32-358.23.2.el6.x86_64)

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