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 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 ker
nel.
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 spec
ify 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 char
acters. In
the configuration file, lines beginning with the
pound-sign (`#')
are comments and are ignored.

EXIT STATUS SEE ALSO

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

HISTORY

The ip6addrctl utility first appeared in the KAME IPv6 pro
tocol stack
kit. The original command name was addrselect, but it was
then renamed
to the current one so that the name would describe its func
tion well.
BSD September 25, 2001
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