Date: Wed, 01 Apr 2015 12:13:41 +0200 From: Miroslav Lachman <000.fbsd@quip.cz> To: Yuri <yuri@rawbw.com>, net@freebsd.org Subject: Re: tap(4): will it be more reasonable if it preserved UP/DOWN state, when closed? Message-ID: <551BC4D5.9010006@quip.cz> In-Reply-To: <551B3021.4050206@rawbw.com> References: <551B3021.4050206@rawbw.com>
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Yuri wrote on 04/01/2015 01:39: > Currently tap(4) device gets to 'down' state when the last process > closes it, regardless of the original 'up/down' state. > Will it be reasonable to modify this behavior and keep this bit > 'was_up_before_open', and leave it 'up' if it was 'up' when it was first > opened? > > Practically speaking, I set it up in rc.conf to be 'up' with the > particular IP, but it goes to 'down' state when VirtualBox closes it. > > If tap(4) can be 'up' without users, there shouldn't be any problem in > leaving it 'up' after use as well? Doesn't sysctl net.link.tap.up_on_open=1 fix your problem? Miroslav Lachman
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