1 .\" Copyright (c) 1995 Martin Schulze <joey@infodrom.north.de>
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24 .\" 1995-10-18 Martin Schulze <joey@infodrom.north.de>
26 .\" 2002-09-22 Seth W. Klein <sk@sethwklein.net>
27 .\" * protocol numbers are now assigned by the IANA
29 .TH PROTOCOLS 5 2012-08-05 "Linux" "Linux Programmer's Manual"
31 protocols \- protocols definition file
33 This file is a plain ASCII file, describing the various DARPA internet
34 protocols that are available from the TCP/IP subsystem.
36 consulted instead of using the numbers in the ARPA include files, or,
37 even worse, just guessing them.
38 These numbers will occur in the
39 protocol field of any IP header.
41 Keep this file untouched since changes would result in incorrect IP
43 Protocol numbers and names are specified by the IANA
44 (Internet Assigned Numbers Authority).
45 .\" .. by the DDN Network Information Center.
47 Each line is of the following format:
50 .I protocol number aliases ...
53 where the fields are delimited by spaces or tabs.
54 Empty lines are ignored.
55 If a line contains a hash mark (#), the hash mark and the part
56 of the line following it are ignored.
58 The field descriptions are:
61 the native name for the protocol.
69 the official number for this protocol as it will appear within the IP
73 optional aliases for the protocol.
75 This file might be distributed over a network using a network-wide
76 naming service like Yellow Pages/NIS or BIND/Hesiod.
80 The protocols definition file.
84 .UR http://www.iana.org\:/assignments\:/protocol\-numbers