protocols - protocol name data base
The protocols file contains information about the known protocols used in the Internet. For each protocol, a single line should be present with the following information:
official_protocol_name protocol_number [alias(es)] [#comment]
Items are separated by any number of blanks, tab characters, or both. A pound sign (#) indicates the beginning of a comment; characters up to the end of the line are not interpreted by routines that search the file.
Instead of the UNIX etc/protocols file, you have the
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