My appologies to Darren, on further investigation, it appears that IPF under 2.9-release does not support IPv6, even after hacking the makefiles to tell it to, (or I missed some further hacking I needed to do to turn it on :-( ). So, http://oversteer.bl.echidna.id.au/IPv6/openbsd-firewall.html is wrong, and I appologise to Darren. Carl