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Date:      Tue, 21 Aug 2012 19:32:52 +0200
From:      olli hauer <ohauer@gmx.de>
To:        lev@FreeBSD.org
Cc:        Garrett Cooper <yanegomi@gmail.com>, current@freebsd.org, jhb@FreeBSD.org
Subject:   Re: r239356: does it mean, that synchronous dhcp and dhcplcinet with disabled devd gone?
Message-ID:  <5033C644.3050302@gmx.de>
In-Reply-To: <1243982625.20120821154548@serebryakov.spb.ru>
References:  <20120821095527.GA33206@hell.ukr.net> <CAGH67wSsMTSHHHi=Qzu6kJ%2BMtFKH9s5zPTdFYSj0WD1duwWuzA@mail.gmail.com> <67977762.20120821154035@serebryakov.spb.ru> <1243982625.20120821154548@serebryakov.spb.ru>

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On 2012-08-21 13:45, Lev Serebryakov wrote:
> Hello, Lev.
> You wrote 21 августа 2012 г., 15:40:35:
> 
> GC>> Try reverting r239356 -- if that works, then please let jhb@ know.
> LS>   I'm confused by  this commit, because it seems (from comment alone),
> LS> that  dhclient  will not work without devd anymore (with "synchronous
> LS> dhcp" option in rc.conf).
> LS>   Am I right?
>  Also,  I  don't  like idea of removing IP address from interface when
> cable is unplugged. It was very disturbing behavior of Windows
> machines for years. I've unplug cable to change switch port for only a
> second and all connections are broken, even if one second later
> dhcpclient receive SAME lease! I don't like this. FreeBSD was very
> tolerant to unplugging cable for eons, and I (and not only me) like
> it. If I understand this change properly, it is no more the case :(
> 

Oh, this is certainly exciting for clients in the backbone when a switch
will be reloaded because of firmware upgrade.

This behavior was a reason for me to run MS machines only virtual instead
using fix IP addresses (using ip arp inspection and dhcp snooping on the
whole network so fix IPs are a no-go)



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