[PC-BSD Testing] UP or DHCP for Ethernet devices

Josh Paetzel josh at tcbug.org
Tue Sep 14 09:30:22 PDT 2010


On Tuesday 14 September 2010 11:04:41 Kris Moore wrote:
> On 09/14/2010 11:14, Dru Lavigne wrote:
> > I had a head scratcher installing 8.1 on a 32 bit testing system. Instead
> > of Ethernet automatically working (as it always has in the past), it
> > gave a device busy error during startup. Manually running dhclient on
> > the device (em0) would not connect to the DHCP server and instead gave a
> > "send_packet: Device busy" error.
> > 
> > The fix was to change the rc.conf flag on the device from UP to DHCP.
> > Kris, do you know what UP was supposed to do?
> > 
> > Cheers,
> > 
> > Dru
> > 
> > 
> > 
> > 
> > _______________________________________________
> > Testing mailing list
> > Testing at lists.pcbsd.org
> > http://lists.pcbsd.org/mailman/listinfo/testing
> 
> The dhcp stuff is usually done via the lagg0 interface, so we mark the
> network device as "up" to ensure its available when lagg0 starts its
> dhcp requests. I'll have to experiment with that, maybe using "up" isn't
> needed anymore if lagg is taking care of it already.

It is busy because it's a member of lagg0, which should handle the DHCP 
request just fine.  The UP on a wired lagg member is extranious.  You do need 
it for wireless so the wireless interface can associate before the it's added 
to the lagg device.


-- 
Thanks,

Josh Paetzel
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