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IP6ADDRCTL(8)		  BSD System Manager's Manual		 IP6ADDRCTL(8)

     ip6addrctl	-- configure address selection policy for IPv6 and IPv4

     ip6addrctl	[show]
     ip6addrctl	add prefix precedence label
     ip6addrctl	delete prefix
     ip6addrctl	flush
     ip6addrctl	install	configfile

     The ip6addrctl utility manages the	policy table of	source and destination
     address selection for outgoing IPv4 and IPv6 packets.  When ip6addrctl is
     invoked without an	argument or with a single argument show, it prints the
     content of	the policy table currently installed in	the kernel.

     To	modify the table, the following	operations are available:

     add prefix	precedence label
	     Add a policy entry.  The prefix argument is an IPv6 prefix, which
	     is	a key for the entry.  An IPv4 prefix should be specified with
	     an	IPv6 prefix using an IPv4-mapped IPv6 address.	The precedence
	     and label arguments are decimal numbers, which specify the	prece-
	     dence and label values for	the entry, respectively.  This opera-
	     tion should be performed without an existing entry	for the	pre-

     delete prefix
	     Delete a policy entry specified by	prefix,	which should be	an
	     IPv6 prefix.  A corresponding entry for the prefix	should have
	     already been installed.

     flush   Delete all	existing policy	entries	in the kernel.

     install configfile
	     Install policy entries from a configuration file named
	     configfile.  The configuration file should	contain	a set of pol-
	     icy entries.  Each	entry is specified in a	single line which con-
	     tains an IPv6 prefix, a decimal precedence	value, and a decimal
	     label value, separated with white space or	tab characters.	 In
	     the configuration file, lines beginning with the pound-sign (`#')
	     are comments and are ignored.

     The ip6addrctl utility exits 0 on success,	and >0 if an error occurs.

     Richard Draves, Default Address Selection for IPv6, RFC 3484.

     The ip6addrctl utility first appeared in the KAME IPv6 protocol stack
     kit.  The original	command	name was addrselect, but it was	then renamed
     to	the current one	so that	the name would describe	its function well.

BSD			      September	25, 2001			   BSD


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