Cant I play multiplayer in minecraft without an IP address

so im playing minecraft 1.5.2 and I really want to play minecraft multiplayer ...i search my IP in cmd and look for the 'server' but its empty.. and not the same as others that where I can save the thingies the IP... so im too tired... can I play multiplayer without an IP pls answer thnxxxx :)

Yup, if your connected to the internet you have an IP address so you can join a multiplayer game but you cant play on your own server without one. An easy way to get around this is using LogMeIn Hamachi. There are many guides on the net so you should be able to find out how to get it working.

Hopefully this helps!

if you have internet you have a ip if you want your own server download bukkit if ur pc can't handel download hamachi and open your world to lan