openconnect (-gui?) on Windows CLI?

[Karl O. Pinc]

On Wed, 11 Jun 2025 16:05:36 +0200
Martin Pauly <pauly at hrz.uni-marburg.de> wrote:

> The reason I would like CLI on Windows may sound a bit strange:

> This time, I would like to replace the whole Pre-Login
> VPN connection with an openconnect one.

I have only a thought, based on my experience, to offer.

It will be a easier to work entirely from the command line
than try to go through a gui.  (Unless you're just using
the gui to come up with the initial openconnect command
to try, and then you'll add more options to reveal
more debugging information.

(I too recall a documentation page for cisco, but haven't
tried to find it.  I last used just -u and --authgroup,
and also --script to vpnc-script-sshd because I want
the vpn in a separate network namespace.  There
may be no way to do the latter on MS Windows.)

A second thought would be to debug on Linux, and use
what you learn to make MS Windows work.  Life is fraught....

Regards,

Karl <kop at karlpinc.com>
Free Software:  "You don't pay back, you pay forward."
                 -- Robert A. Heinlein