Assignment:
Mobile IP was intended to work with legacy correspondent hosts and legacy applications. However, some advantages may be gained if correspondent hosts are aware of mobility in certain ways.
a) If a correspondent host is able to do IP-in-IP decapsulation, it may be able to communicate more efficiently with the mobile host despite the presence of ingress filtering. Why?
b) If a correspondent host is able to do IP-in-IP encapsulation, it may be able to communicate more efficiently with the mobile host than is possible with standard Mobile IP. Why?