With pf http://www.openbsd.org/faq/pf/index.html
But as you can see in OpenSolaris you must use IPfilter but as you can see here http://coombs.anu.edu.au/~avalon/ no updates for looooooong time so I don't think that you can trust this piece of SW. You will be more happy with OpenSolaris behind some external firewall like pf on OpenBSD or IPtables on Linux or some specialized device. -- This message posted from opensolaris.org
