+ipv6host
+ This interface allows specific IPv6 internet addresses to be
+ treated as single label hosts. Packets are sent to single
+ label hosts only from processes that have Smack write access
+ to the host label. All packets received from single label hosts
+ are given the specified label. The format accepted on write is:
+ "%h:%h:%h:%h:%h:%h:%h:%h label" or
+ "%h:%h:%h:%h:%h:%h:%h:%h/%d label".
+ The "::" address shortcut is not supported.
+ If label is "-DELETE" a matched entry will be deleted.