MN Discovery and IP routing

1. CN sends a IP packet with as specific MN as destination address and CN as source address
2. CN router does know where MN is but just route IP packet to the router which is responsible for MN's HN
3. HA intercept the packets, HA knows that MN is not at HN now and forward the packet into the subnet with encapsulated and tunnelled to the COA. New header in front of old IP address will show
that HA is the source and COA is the target address
4. FA stract the orginal packet and send the data to MN with CN as the source

MN received the packet as it was from CN to MN directly

Donwlink data flow would be simple as MN send packet to CN in case of CN is not mobile

In case of mobile CN, 1-4 will be repeated