Mobile Internet Protocol $($Mobile IP$)$:

The Mobile IP protocol covered in the lecture utilizes indirection where packets

are routed through a home agent rather than directly to the mobile host. This

approach has a notable limitation: whenever the mobile host connects to a new

network, it must send registration messages back to the home agent to update

its location. For example, if a user typically resides in Sydney but is currently

traveling in San Francisco, every time the user connects to a different network,

the registration message must be sent across the Pacific Ocean to the home agent

in Sydney. This results in potential inefficiencies and increased latency. Suggest

a technique that can eliminate the inefficiency of sending registration messages

back to the home agent without altering the Mobile IP protocol itself.

Note: Please mention the references where required.