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Date: Fri, 13 Jul 2012 13:21:56 -0500
From: Brooks Davis <brooks@freebsd.org>
To: John Baldwin <jhb@freebsd.org>
Message-ID: <20120713182156.GB89895@lor.one-eyed-alien.net>
References: <4FFF3683.7020107@rawbw.com>
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Cc: freebsd-net@freebsd.org, Peter Jeremy <peter@rulingia.com>,
	Yuri <yuri@rawbw.com>
Subject: Re: System doesn't detect unplugged network cable and doesn't set
 interface up properly with DHCP
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On Fri, Jul 13, 2012 at 08:41:23AM -0400, John Baldwin wrote:
> [ Adding Brooks, IIRC, he imported the current dhclient ]
>=20
> On Friday, July 13, 2012 5:48:30 am Peter Jeremy wrote:
> > On 2012-Jul-12 13:41:39 -0700, Yuri <yuri@rawbw.com> wrote:
> > >I have the simplest possible DHCP setup: ifconfig_re0=3D"DHCP" in=20
> > >/etc/rc.conf.
> > >
> > >When the system boots, it gets connected fine.
> > >
> > >Now,  I disconnect my laptop and connect it to another network.
> > >When cable is disconnected, IP address of this interface stays the sam=
e,=20
> > >old one is not removed.
> > >When I plug it into another network, the same IP address stays. New IP=
=20
> > >doesn't get set. This is bad.
> > >So I have to manually do 'ifconfig re0 down && remove <OLD-IP> &&=20
> > >ifconfig re0 up'.
> >=20
> > This is a bug in dhclient - see PR bin/166656, which includes a fix.
>=20
> I think this is the correct answer.  Brooks, can you look at the PR and p=
atch? =20
> If you are busy I can commit it if you give the ok.

That seems fine to me.  Feel free to commit.

-- Brooks

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