configure address selection policy for IPv6 and
utility manages the policy
table of source and destination address selection for outgoing IPv4 and IPv6
is invoked without
an argument or with a single argument
it prints the content of the policy table currently installed in the kernel.
To modify the table, the following operations are available:
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
label arguments 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
- Delete a policy entry specified by
prefix, which should be an IPv6 prefix. A
corresponding entry for the prefix should have already been
- Delete all existing policy entries in the kernel.
- 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
utility exits 0 on
success, and >0 if an error occurs.
Default Address Selection for IPv6,
utility first appeared in the
KAME IPv6 protocol stack kit. The original command name was
, but it was then renamed to the
current one so that the name would describe its function well.