ARP Spoofing mitigation module on POX SDN controller.

• Prevent LAN attackers from poisoning cache table entries of nodes with a little overhead.
• Prevent malicious packets from entering network.

• ARPspoofperf.py creates the test setup with the detection module.
• ARPspoofperfwithoutsol.py creates the test setup without the detection module.
• l2_learning_arp_mitigation.py has the ARP mitigation module on POX controller.

• Run the POX controller using ./pox.py log.level --DEBUG proto.dhcpd --network=10.1.1.0/24 --ip=10.1.1.1 forwarding.l2_learning_arp_mitigation
• Run the topology using sudo mn --mac --controller remote --topo=single,3