Setting up a new home lab for arp poisoning

As mentioned earlier I use a Kali version with Websploit for trying out my CEH labs.

Setting is Kali running with multiple containers to play around.
Do want to try now something new, made a new homelab to play around with things like ARP poisoning.

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Setup was easy in VM box with 1 ubuntu and one cloned, but then the network part started.

While I've chosen clone instead of create new, I was smart enough to check the option " create new Mac"
unfortunately after running ifconfig it showed both of the times the same ip address, with different Macs...

Lesson learned, there first needed to be a virtual NAT to have both systems in the same network

[ image virtual nat]

while there was some tweaking needed the lab succeeded in running ettercap and Wireshark to do an arp poisoning from the attacker box and sniffing the traffic of the victim :-)

[ image of Wireshark side by side to be added ]
Lab which I am conducting:
http://www.csc.villanova.edu/~enwafor/cps_security/documents/lab1_mitm_update.pdf