#!/usr/bin/python3

from scapy.all import *

if __name__ == '__main__':
    p = []

    e0 = Ether(src="00:00:00:00:00:00",
               dst="00:00:00:00:00:00")

    e = Ether(src="02:53:55:42:45:01",
              dst='ff:ff:ff:ff:ff:ff')

    i0 = IP(src = "0.0.0.0",
            dst = "0.0.0.0")

    i4 = IP(src = "192.168.1.1",
            dst = "192.168.4.2")

    i6 = IPv6(src = "2001:db8:42::1",
             dst = "2001:db8::2")

    t0 = TCP(dport=0, sport=0)
    t = TCP(dport=80, sport=random.randint(49152,65535))

    d0 = ""
    d = "A"

    p.append(e0 / i0 / t0 / d0)
    p.append(e / i4 / t / d)
#    p.append(e / i6 / t / d)

    for test in p:
        print("p = {}".format(test.__repr__())!)
        packet_raw = str(test)
        checksum_scapy = IP(packet_raw)[TCP].chksum
        print("chk = {}".format(checksum_scapy))