Hi, On Wed, Sep 14, 2022 at 09:33:46AM +0200, David Sommerseth wrote: > > + What happens if the device name is not :code:`tun` or :code:`tap` is > > + platform dependent. > > + > > + On most platforms, :code:`tunN` (e.g. tun2, tun30) and :code:`tapN` > > + (e.g. tap3) will create a numbered tun/tap interface with the number > > + specified - this is useful if multiple OpenVPN instances are active, > > + and the instance-to-device mapping needs to be known. Some platforms > > + do not support "numbered tap", so trying ``--dev tap3`` will fail. > > + > > + Arbitrary names (e.g. ``--dev home``) will not work on most platforms, > > + with the exception of Linux and FreeBSD with the DCO kernel driver. > > + > > + There, arbitrary names are allowed, and will create a tun or DCO > > + device named as requested. > > + > > This is confusing and not quite right. I've used "--dev home" for a > long time on Linux with tun devices. But it requires "--dev-type tun". > There are no dependencies on DCO in this use case.
The sentence above should have read "Linux and (FreeBSD with the DCO driver)".
FreeBSD *with* DCO can do arbitrary names, without, it's "tun<N>" and
"tap<N>" only.
Suggestions how to word this better?
I'll add "if the arbitrary device name does not start with 'tun' or 'tap',
Linux needs a --dev-type tun/tap to tell".
> [...snip...]
>
> > @@ -93,6 +112,11 @@ routing.
> > both the network connections control panel name and the GUID for each
> > TAP-Win32 adapter.
> >
> > + On other platforms, ``--dev-node node`` will influence the naming of the
> > + created tun/tap device, if supported on that platform. If OpenVPN cannot
> > + figure out whether ``node`` is a TUN or TAP device based on the name,
> > + you should also specify ``--dev-type tun`` or ``--dev-type tap``.
>
> IIRC correctly on Windows (too many years since last time with a more
> advanced setup there), --dev-node does not influence the naming of the
> tap-windows6 interface, but is a reference to the pre-created interface.
Windows is not part of "other platforms" here, but covered in the preceding
paragraph -> so, yes, that's what it says there :-)
gert
--
"If was one thing all people took for granted, was conviction that if you
feed honest figures into a computer, honest figures come out. Never doubted
it myself till I met a computer with a sense of humor."
Robert A. Heinlein, The Moon is a Harsh Mistress
Gert Doering - Munich, Germany g...@greenie.muc.de
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