protocol name database
file contains information regarding
the known protocols used in the DARPA Internet. For each protocol, a single
line should be present with the following information:
official protocol name
Items are separated by any number of blanks and/or tab characters.
A hash mark (‘
’) indicates the beginning
of a comment; subsequent characters up to the end of the line are not
interpreted by the routines which search the file.
Protocol names may contain any printable character other than a field delimiter,
newline, or comment character.
file format appeared in
A name server should be used instead of a static file. Lines in
are limited to
characters (currently 1024). Longer
lines will be ignored.