Problem 3. NAT/PAT. Consider the following design problem. Two corporations A and B with conflicting private IP address space need connectivity to each other and/or the Internet (see Figure 2. Suppose that both corporations use the 10.0.0.0/24 subnet inside their network. 1. Supply a NAT only solution. More specifically, show how router NAT/PAT A will forward a packet towards corporation B. Supply all necessary fields in the L2-L4 headers. 2. Supply a NAT/PAT solution. More specifically, show how router NAT/PAT A will forward a packet towards corporation B. Supply all necessary fields in the L2-L4 headers. NAT/PAT A NAT/PAT B A Internet B Figure 2: The network in Problem 3.