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NAME    [Toc]    [Back]

     ip6addrctl -- configure address selection policy for IPv6 and IPv4

SYNOPSIS    [Toc]    [Back]

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

DESCRIPTION    [Toc]    [Back]

     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
	     decimal 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, separated with white space or tab characters.  In
	     the configuration file, lines beginning with the pound-sign (#)
	     are comments and are ignored.

RETURN VALUES    [Toc]    [Back]

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

SEE ALSO    [Toc]    [Back]

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

HISTORY    [Toc]    [Back]

     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		 FreeBSD 5.2.1
[ Back ]
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