Video presentation: Network Layer: The Internet Protocol, part 2. Network address translation. NAT. IPv6. Tunneling.

Computer networks class.
Jim Kurose
Textbook reading: Section 4.3.3 and 4.3.4, Computer Networking: a Top-Down Approach (8th edition), J.F. Kurose, K.W. Ross, Pearson, 2020.
See http://gaia.cs.umass.edu/kurose_ross for more open student resources.