rcv-ack-with-data-listen-ipv6.pkt

//
// Copyright (c) 2016 Michael Tuexen
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
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// 2. Redistributions in binary form must reproduce the above copyright
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//
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//

// Ensure that the reception of a TCP segments with the ACK bit set in the
// LISTEN state does trigger the sending of a RST segment.

--ip_version=ipv6
--tolerance_usecs=75000

// Ensure that all relevant sysctl variables have their default values.
 0.00 `sysctl -w net.inet.tcp.rfc1323=1`
+0.00 `sysctl -w net.inet.tcp.sack.enable=1`
+0.00 `sysctl -w net.inet.tcp.ecn.enable=2`
+0.00 `sysctl -w kern.ipc.maxsockbuf=2097152`
+0.00 `sysctl -w net.inet.tcp.recvspace=65536`
+0.00 `sysctl -w net.inet.tcp.sendspace=32768`
// Flush host cache.
+0.00 `sysctl -w net.inet.tcp.hostcache.purgenow=1`
// Create a TCP endpoint in CLOSED state.
+0.00 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0.00 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+0.00 bind(3, ..., ...) = 0
+0.00 getsockopt(3, SOL_SOCKET, SO_RCVBUF, [65536], [4]) = 0
+0.00 listen(3, 1) = 0
// Now it is in the LISTEN state.
+0.10 <  . 17:20(3) ack 34 win 32767
+0.00 > R  34:34(0) win  0
+0.00 close(3) = 0