Question $13$

$($i$)$ Explain how the Transport and the Tunnel modes are used in IPv$6$ security.

$($ii$)$ Explain the three address types used in IPv$6,$ and what is the address aggregation

in IPv$6.$

$($iii$)$ During transition from IPv$4$ to IPv$6$ the V$6$ hosts will need to communicate with

the other V$6$ hosts over the V$4$ networks. Explain what are the two possible solutions

to this problem. Support your answer with the relevant designs.