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Performing low-level Ethernet interface operations in C involves direct system calls and network device control, requiring administrative privileges and a deep understanding of the operating system and network stack. Accessing the Interface Accessing an Ethernet interface typically involves obtaining permissions to configure and manipulate it. ...

Role of ARP in Network CommunicationWhen a host initiates network communication, the application layer is aware of the destination IP address and port number but lacks knowledge of the target's hardware (MAC) address. Since network interface cards process incoming packets at the physical layer first, any frame with a mismatched destination MAC ...