1 ip:::send    (args[2]: 4 64, args[4]: 4 84 0 0 255)
1 ip:::send    (args[2]: 4 64, args[4]: 4 84 0 0 255)
2 ip:::receive (args[2]: 4 64, args[4]: 4 84 0 0 255)
2 ip:::receive (args[2]: 4 64, args[4]: 4 84 0 0 255)
127.0.0.1 is alive