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In this project , you will emulate the operation of a link layer and network layer protocol in a small computer network. You will start several nodes so that they can send packets to each other as if there are links between them. Running as an independent node, your program should implement a simple version of GoBack-N Protocol Link Layer
A port scanner is a program that automatically detects security weaknesses in a remote or localhost. When hackers attack a site, they often try each port in turn to see which are available and not blocked by a firewall or TCP wrapper. This scan can be recognized by a series of packets from one host to another in a short period of time. Port scan…