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  2. Ping-pong scheme - Wikipedia

    en.wikipedia.org/wiki/Ping-pong_scheme

    A functionality which lets a computer A find out whether a computer B is reachable and responding is built into the Internet Control Message Protocol (ICMP). Through an "Echo Request" Computer A asks B to send back an "Echo Reply". [2] These two messages are also sometimes called "ping" and "pong" for historical purposes. [citation needed]

  3. Internet Control Message Protocol - Wikipedia

    en.wikipedia.org/wiki/Internet_Control_Message...

    The ICMP header starts after the IPv4 header and is identified by its protocol number, 1. [6] All ICMP packets have an eight-byte header and variable-sized data section. The first four bytes of the header have fixed format, while the last four bytes depend on the type and code of the ICMP packet.

  4. ICMP hole punching - Wikipedia

    en.wikipedia.org/wiki/ICMP_hole_punching

    ICMP hole punching is a technique employed in network address translator (NAT) applications for maintaining Internet Control Message Protocol (ICMP) packet streams that traverse the NAT. NAT traversal techniques are typically required for client-to-client networking applications on the Internet involving hosts connected in private networks ...

  5. List of network protocols (OSI model) - Wikipedia

    en.wikipedia.org/wiki/List_of_network_protocols...

    This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.

  6. ICMP echo request - Wikipedia

    en.wikipedia.org/?title=ICMP_echo_request&...

    move to sidebar hide. From Wikipedia, the free encyclopedia

  7. ping (networking utility) - Wikipedia

    en.wikipedia.org/wiki/Ping_(networking_utility)

    Pinging involves sending an ICMP echo request to the target host and waiting for an ICMP echo reply. The program reports errors, packet loss , and a statistical summary of the results, typically including the minimum, maximum, the mean round-trip times, and standard deviation of the mean.

  8. List of RFCs - Wikipedia

    en.wikipedia.org/wiki/List_of_RFCs

    This is a partial list of RFCs (request for comments memoranda). A Request for Comments (RFC) is a publication in a series from the principal technical development and standards-setting bodies for the Internet, most prominently the Internet Engineering Task Force (IETF).

  9. ICMP tunnel - Wikipedia

    en.wikipedia.org/wiki/ICMP_tunnel

    ICMP tunneling works by injecting arbitrary data into an echo packet sent to a remote computer. The remote computer replies in the same manner, injecting an answer into another ICMP packet and sending it back. The client performs all communication using ICMP echo request packets, while the proxy uses echo reply packets.