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

NAME
     ip6addrctl -- configure address selection policy for IPv6 and IPv4

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

DESCRIPTION
     The  ip6addrctl  command 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.  Prefix 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.  Precedence and label are  deci-
	     mal  numbers, which specify the precedence and label values for the
	     entry, respectively.  This operation should be performed without an
	     existing entry for the prefix.

     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 policy entries.
	     Each entry is specified in a single line  which  contains	an  IPv6
	     prefix, a decimal precedence value, and a decimal label value, sep-
	     arated  with  white  space or tab characters.  In the configuration
	     file, lines beginning with the pound-sign (#) are comments and  are
	     ignored.

RETURN VALUES
     The program exits with 0 on success, non-zero on failures.

SEE ALSO
     Richard Draves, "Default Address Selection for IPv6", RFC 3484.

HISTORY
     The  ip6addrctl command 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.

FreeBSD 5.2.1		       September 25, 2001		   IP6ADDRCTL(8)
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