Mobile Node home address and Mobile Node Home Agent Address I have been reading mobile IPv6 for a while and in that the two terms: Mobile Node's Home address and Mobile Node's Home agent address are used frequently, and they seem similar to me. My question is do they mean the same thing, or are they two different addresses? If they are different then how can we tell which will be used when?

A Mobile Node is the host which is roaming; a Mobile Node Home Agent is a router of the Mobile Node's home network which keeps track of the Mobile Node's current location.

When traffic is sent to the Mobile Nodes Home Address, the Mobile Home Agent forwards that traffic, via a tunnel, to the Mobile Node at it's current location.

It could be compared to you going to visit a relative and forwarding your home phone to Grandma's home phone. Someone who calls your home number will reach you at Grandma's house, but the caller has no idea that you aren't at home.