Write a program in C that requires one command-line argument that is an IPv4 dotted-decimal address. Create an IPv4 TCP socket and bind this address to the socket along with some port, say 9999. Call listen and then pause. Write a similar program that takes an IPv6 hex string as the command-line argument and creates a listening IPv6 TCP socket. Start the IPv4 program, specifying the wildcard address as the argument. Then, go to another window and start the IPv6 program, specifying the IPv6 wildcard address as the argument. Can you start the IPv6 program since the IPv4 program has already bound that port? Does the SO_REUSEADDR socket option make a difference? What if you start the IPv6 program first, and then try to start the IPv4 program?

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Types Of Protocols

A network protocol is a collection of rules that governs the exchange of data between devices connected to the same network. In other words, network protocols are rules that specify how devices communicate or transfer data over a network. The sender and receiver systems must obey the standards to facilitate communication between them.