Date:        Thu, 13 Jul 2000 15:49:59 +0200
    From:        Feico Dillema <feico@dillema.net>
    Message-ID:  <20000713154959.B2913@dillema.net>

  | Is this known behaviour or a known bug?

It is known and expected (and not a bug).   stty will change things OK,
but only until the terminal is closed, after which everything gets reset
(so you can do " (stty clocal; sleep 3600) </dev/tty00 & " if you want,
then for the next hour the setting will remain...

The right way to fix this is to change the settings in /etc/ttys
(mark tty00 with the "local" flag) and then run ttyflags -a
which will make the driver ignore carrier until you explicitly
change it back again.

kre