Start a named process on one IP address:
$ iex --name foo@10.238.82.82 --cookie chocolate
iex(foo@10.238.82.82)> Node.ping :"bar@10.238.82.85"
:pong
iex(foo@10.238.82.82)> Node.list
[:"bar@10.238.82.85"]
Start another named process on a different IP address:
$ iex --name bar@10.238.82.85 --cookie chocolate
iex(bar@10.238.82.85)> Node.list
[:"foo@10.238.82.82"]