Home sharing allows you to transfer and stream videos, music and more with other computers on your local network. Home Sharing requires you to use iTunes 9 or later, have an Apple ID, a Local Network connection (Ethernet or Wi-Fi) and an Active Internet connection. Here’s how you turn on Home Sharing in ITunes.
Start iTunes and login with your Apple ID
Now go to Advanced> Turn on Home Sharing
Enter your Apple ID and Password.
In less than one minute, you’ll get a message telling you that Home Sharing is turned on.