Anybody with Networking Knowledge - I need some help... I'm currently studying for a Cisco Networking Course and for my coursework I have mostly completed apart from some odd questions that I could not find the answers. Any help appreciated for the following related questions: 1a. What kind of primitives does Internet Protocol Version 4 (Ipv4) have and Why? 1b. Suppose a network layer can directlyl contact with other network layer. What kind of primitives can appear? 1c. Why does Ipv6 not contain a protocol field? I have already tried researching the answers but i would like to know if anybody with the appropriate knowledge can help.