Computer Networks (CITS3230) - Tutorial 4

1. List three technical reasons, and three societal reasons, as to why the global Internet has been as successful as it has been.

   How do you think the global Internet will change in the next 2 years? 5 years?

2. The list of Internet history milestones, presented in the lecture notes of Week 7, stops at 1993.

   List 5 significant Internet history milestones that have occurred since then.

3. Each IPv4 address is 32 bits wide, suggesting that there are 2³² possible addresses.

   With reference to RFC 997, what is the maximum number of different hosts which may be addressed using the Internet Protocol addressing scheme (assume that just addresses of classes A, B and C are in use)?

4. Explain why the Internet Protocol (IPv4) addressing scheme is often described as running out of addresses.

   What mechanisms are currently being employed to extend the lifespan of IPv4?

Chris McDonald

April 2008.