Suppose most of the Internet used some form of geographical addressing but that a large international organization has a single IP network address and routes its internal traffic over its own links.

(a) Explain the routing inefficiency for the organization’s inbound traffic inherent in this situation.

(b) Explain how the organization might solve this problem for outbound traffic.

(c) For your method above to work for inbound traffic, what would have to happen?

(d) Suppose the large organization now changes its addressing to separate geographical addresses for each office. What will its internal routing structure have to look like if internal traffic is still to be routed internally?