This post is to make it extremely clear what is acceptable if you want to play with friends or family on the same IP. It is allowed, but;
1. Do not send each other money. Keep totally financially separate. (Reason; obvious.... No financial help).
2. Do not join each other's gyms (Reason; fighters being used as spar-bots).
3. Or orgs. (Reason; potential record padding or favourable matchmaking).
4. Do not fight each other, except on rare occasions. (Reason; potential record padding).
It's pretty simple really... Just keep totally separate.