Changing MAC address and IP address...?

[SideWinder]

My brother asked me this and I thought i'd skip Google and come straight here:

IP change is relatively easy, but i'm curious how i can change my MAC address and my IP address without trace (i.e. no proxy). Effectively changing the range of IP i'm in as well, for example this house is usually in the 86.--- etc etc range.

I figured you'd know how to do this. I've seen a method to do it on MAC through creating a new registery effectively but just wondering if you've ever done it, or know someone who has.

I have asked why he wants to do this as it seems like an odd thing to want to do?

Thanks in advance.

 

[SideWinder]

Well, the set-up at home is a BT Homehub. Nothing special really. It sounds like a server he has been banned from and him wanting to get back into it.

@Saundie: That was my first thought as well...but i don't know much about it so i thought i'd better check.