from scapy.all import *
import sys

Dot1Q().display()
IP().display()

layer2 = Ether(dst="00:23:7d:00:d0:a8")/Dot1Q(vlan=20, prio=3)
layer3 = IP(dst="192.168.0.1", src="192.168.0.2", tos=72)
print("Layer 3 = ", layer3)
layer2.show()
layer3.show()
sendp(layer2/layer3, iface="Realtek PCIe GbE Family Controller")