"epilogue" script?

[Ian Smith]

On Sat, 30 Jan 2016 09:34:16 -0600 (CST), Valeri Galtsev wrote:
 > On Sat, January 30, 2016 8:19 am, Ian Smith wrote:
[..]
 > > We don't really know what Valeri wants to run, and whether it's one or
 > > more daemons, maybe including long-running background scripts, that may
 > > need start|stop|status control via service(8), or whether it's more
 > > simply one or more one-off tasks to be run sometime after startup?
 > 
 > It is rather simple thing which I need. I'm trying to set up openvpn, and
 > I need _after_ starting openvpn daemon to add tap0 interface to the bridge
 > then set IP on the bridge and on tap0 interface the same as that of real
 > interface which is member of this bridge. This is the only way I managed
 > to make openvpn really work (by trial and error). I'm kind of not inclined
 > to use openvpn's mechanism (which they seemingly have) to do it (it is not
 > a first time I spent this long setting up something on FreeBSD, but it was
 > the first time I spent this time... hm, not that productive. My ignorance
 > is to blame, still...)

I know absolutely nothing about openvpn or tap interfaces so can't help 
with that, except to suggest freebsd-net@ as the best place to ask.

cheers, Ian