ICMP
The Internet Control Message Protocol (ICMP) [RFC792].
icmpnetworkprotocol
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The Internet Control Message Protocol (ICMP) [RFC792].
TCP, is a protocol that ensures data packets are delivered and received in order, with no dropped packets.
Promiscuous mode is a network monitoring technique used for packet sniffing, mostly for diagnosing network connectivity problems and detect potential vulnerabilities.
The tcpdump is a CLI tool, designed to intercepts network traffic and providing a look at what kind of information flows through the existing connections.