[Bug 256393] Issue with recreation of ppp/tun interfaces

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 05 Jun 2021 08:29:02 UTC

--- Comment #22 from Eugene Grosbein <eugen@freebsd.org> ---
(In reply to Alexander V. Chernikov from comment #20)

>IIRC route(8) does not use RTF_PINNED during addition, so route installation may fail even w/o PINNED route. I'm not sure if that's something that we should change. Also, currently, override triggers a couple of rtsock notifications to allow routing daemons to track the changes, so it's not exactly "silent".
>The rest describes the current system behaviour.

Thank you very much for clarificaion.

If there is daemon-installed route (learned dynamically), there should be a way
to overrided it with manually installed route. I'm sure "route delete/route
add" is racy and won't work because of daemon re-installing its route.

Will "route change" do the job reliably in such case?

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