IPv6 address labels are used for address selection; they are described in RFC 3484. Precedence is managed
by userspace, and only the label itself is stored in the kernel.
ipaddrlabeladd-addanaddresslabel
add an address label entry to the kernel.
prefixPREFIXdevDEV
the outgoing interface.
labelNUMBER
the label for the prefix. 0xffffffff is reserved.
ipaddrlabeldel-deleteanaddresslabel
delete an address label entry from the kernel. Arguments: coincide with the arguments of ipaddrlabeladd but the label is not required.
ipaddrlabellist-listaddresslabels
list the current address label entries in the kernel.
ipaddrlabelflush-flushaddresslabels
flush all address labels in the kernel. This does not restore any default settings.