> I'd like to know what goes on behind the mask. > > I sifted through /etc/rc.d and so on but it's not very clear. See sysctl net.inet6.ip6.auto_linklocal -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews at isc.org