package main

import (
  "net"
  "fmt"
)

func main() {

  loIP := net.IPv4(127,0,0,1)

  // Accept TCP connections on localohst
  listener, err := net.ListenTCP("tcp", &net.TCPAddr{ IP: loIP , Port: 0})
  if err != nil {
    panic(err)
  }
  go func(){
    for {
      _, err := listener.Accept()
      if err != nil {
        fmt.Println(err)
      }
    }
  }()

  // Dial localhost
  ipconn, err := net.DialIP("ip:tcp", nil, &net.IPAddr{IP: loIP})
  if err != nil {
    panic(err)
  }
  _, _, err = ipconn.WriteMsgIP([]byte{11,22,33}, []byte{}, &net.IPAddr{ IP: loIP })
  if err != nil {
    panic(err)
  }
  fmt.Println("Heppy exit!")

}