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protocols (5)
  • protocols (4) ( Solaris man: Специальные файлы /dev/* )
  • protocols (4) ( Русские man: Специальные файлы /dev/* )
  • protocols (5) ( FreeBSD man: Форматы файлов )
  • protocols (5) ( Русские man: Форматы файлов )
  • >> protocols (5) ( Linux man: Форматы файлов )
  •  

    NAME

    protocols - the protocols definition file
     
    

    DESCRIPTION

    This file is a plain ASCII file, describing the various DARPA internet protocols that are available from the TCP/IP subsystem. It should be consulted instead of using the numbers in the ARPA include files, or, even worse, just guessing them. These numbers will occur in the protocol field of any IP header.

    Keep this file untouched since changes would result in incorrect IP packages. Protocol numbers and names are specified by the IANA (Internet Assigned Numbers Authority).

    Each line is of the following format:

    protocol number aliases ...

    where the fields are delimited by spaces or tabs. Empty lines are ignored. If a line contains a hash mark (#), the hash mark and the part of the line following it are ignored.

    The field descriptions are:

    protocol
    the native name for the protocol. For example ip, tcp, or udp.
    number
    the official number for this protocol as it will appear within the IP header.
    aliases
    optional aliases for the protocol.

    This file might be distributed over a network using a network-wide naming service like Yellow Pages/NIS or BIND/Hesiod.  

    FILES

    /etc/protocols
    The protocols definition file.
     

    SEE ALSO

    getprotoent(3)

    http://www.iana.org/assignments/protocol-numbers  

    COLOPHON

    This page is part of release 3.14 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


     

    Index

    NAME
    DESCRIPTION
    FILES
    SEE ALSO
    COLOPHON


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