Date: Wed, 31 Aug 2005 13:40:19 +0200 From: Ewald Jenisch <a@jenisch.at> To: Rein Kadastik <wigry@uninet.ee> Cc: freebsd-questions@freebsd.org Subject: Re: rc.conf - setting interface UP without IP-address? Message-ID: <20050831114019.GB3511@aurora.oekb.co.at> In-Reply-To: <43159779.30509@uninet.ee> References: <20050831090245.GA3534@aurora.oekb.co.at> <20050831103632.GC47091@orion.daedalusnetworks.priv> <43159779.30509@uninet.ee>
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On Wed, Aug 31, 2005 at 02:41:45PM +0300, Rein Kadastik wrote:
> Excuse me for a silly question, but what the hell is UP? I know, what is
> IP, I know how ifconfig works, but wtf is UP?
>
UP is the state of the interface. You can set an IF up/down to
enable/disable the IF. Current state of an interface can be seen with
ifconfig, e.g.
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
^^
Normally an interface is automatically taken up when you give it an
IP-address.
-ewald
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