Hi James,
It is recommended that you install ipaudit from the FreeBSD ports as it contains patches for ipaudit to be used under FreeBSD.
cd /usr/ports/net-mgmt/ipaudit; make; make install
A good reference for The FreeBSD ports could be found here.
http://www.freebsd.org/doc/en/books/handbook/ports.htmlFreeBSD 5.x and later (Hex 1.x is based on FreeBSD 6) no longer use MAKEDEV script; they use devfs, which makes device nodes for every device that has a driver available. Check out devfs manpage for details. If you insist on manual setting, you can try "mknod".
As for ipaudit-web, it's still beta version and I have not tried it.
--
Regards
Kevin Foo