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nets(4)								      nets(4)



NAME

  nets - JOIN DHCP server database

DESCRIPTION

  The nets file	is employed by joind, the JOIN DHCP server, to tell it which
  networks to administer and the ranges	of IP addresses	available for dynamic
  assignment on	each of	those networks.

  FORMAT


  Blank	lines and lines	beginning with the number sign (#) are ignored.
  Entries are separated	from one another by newline characters.	 Entries con-
  sist of three	fields:	the network number (expressed as an IP address), the
  IP address or	name of	a host running joind, which dynamically	configures
  clients on the network, and a	range of available addresses for dynamic
  allocation to	hosts on the net. The range is expressed as a pair of IP
  addresses separated with a dash (-). There must be no	whitespace separating
  the dash from	the IP addresses.

  Several servers may administer a single network, and a single	server may
  administer several networks. Each network-server pair	may have several
  ranges of IP addresses available for dynamic allocation.  The	network	and
  server IP addresses do not have to be	repeated for each entry.  A line con-
  taining a single field is assumed to be an IP	range with the same server
  and network as the previous entry: a line of two fields is assumed to	be a
  server address and IP	range with the same network as the preceding entry.

  The ranges of	addresses served by each cooperating server must be disjoint.
  This condition is checked by the server on startup.

RELATED	INFORMATION

  joind(8), join.ipaddresses(4)