Optimization of Packet Forwarding
	n Triangular Routing – sender sends all packets via HA to MN – higher latency and network load n “Solutions” – sender learns the current location of MN – direct tunneling to this location – HA informs a sender about the location of MN – big security problems! n Change of FA – packets on-the-fly during the change can be lost – new FA informs old FA to avoid packet loss, old FA now forwards remaining packets to new FA – this information also enables the old FA to release resources for the MN