Propose a plausible addressing plan for IPv6 that runs out of bits.

Specifically, provide a diagram such as Figure 4.11, perhaps with additional ID fields, that adds up to more than 128 bits, together with plausible justifications for the size of each field. You may assume fields are divided on byte boundaries, and that the InterfaceID is 64 bits. Hint: Consider fields that would approach maximum allocation only under unusual circumstances. Can you do this if the InterfaceID is 48 bits?

Figure 4.11)

3 010 RegistryID m n ProviderID SubscriberID SubnetID 125-m-n-o-p InterfaceID