So i downloaded ubuntu 12.0.4 off osboxes.org. I then created 1 image then cloned it for virtual box. How do I test arp cache poisoning if both images have the same ip address and default gateway? Both virtual machines have different mac addresses.May I ask what am I doing wrong? I want 1 virtual machine to be able to listen to the second virtual machineWhy are my two virtual machines getting the same IP address? 
How to properly test arp cache poisoning locally
ubuntu;arp