tunnels, interfaces, routes, and delay links. Currently in the freebsd
subtree, it will move to the common directory at some point. When used
with either -i or -u, it will also run the rc files, either to install
(-i) or to uninstall (-u). I suppose a logical option would be a -r
option to reinit (uninstall, followed by install), and that would be
easy to add. Also takes a -j option to specify a vnodeid (jail), which
does all the same stuff, but just for the specified jail node (tmcd
changed to return vnode specific data). So, this script can be used to
set up the phys node, or any single virtual node on that phys node.

Changed delaysetup to take the same options (-i, -u, -j), and I call
delaysetup from ifsetup, passing the options along.