ethers(4N)                       (TCP/IP)                        ethers(4N)


   NAME
         ethers - Ethernet address to hostname database or domain

   DESCRIPTION
         The ethers file contains information regarding the known (48 bit)
         Ethernet addresses of hosts on the Internet.  For each host on an
         Ethernet, a single line should be present with the following
         information:

               Ethernet-address  official-host-name

         Items are separated by any number of SPACE and/or TAB characters.  A
         `#' indicates the beginning of a comment extending to the end of
         line.

         The standard form for Ethernet addresses is x:x:x:x:x:x where x is a
         hexadecimal number between 0 and ff, representing one byte.  The
         address bytes are always in network order.  Host names may contain
         any printable character other than a SPACE, TAB, NEWLINE, or comment
         character.  It is intended that host names in the ethers file
         correspond to the host names in the hosts(4N) file.

         The etherline routine from the Ethernet address manipulation
         library, ethers(3N) may be used to scan lines of the ethers file.

   FILES
         /etc/ethers

   SEE ALSO
         ethers(3N), hosts(4N).























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