Issue with DHCP with Wireless card

[Matthew Newton]

On Wed, Mar 12, 2014 at 04:42:44PM -0500, Hugh McLenaghan wrote:
> Yeah.   Strange thing is that I'm sure I had it working at one
> point.  Doesn't really make sense to me.  It appears to be doing
> what it's supposed to be, but for some reason the packet isn't
> being sent out by the card or being seen on the card/interface.
> 
> Going to try it on another Pi to see if somehow some library somewhere got mixed up.

OK, that was a long build - about 45 minutes from configure to
installed...!

Unfortunately, it proves nothing. FreeRADIUS will quite happily
serving DHCP on either eth0 or wlan0 on the Pi.

O/S here is a slightly not up to date raspbian (Linux raspberrypi
3.6.11+ #456 PREEMPT Mon May 20 17:42:15 BST 2013 armv6l
GNU/Linux, Debian 7.1) Same wlan card that worked on the desktop
PC.

I assume you have no firewall running?

Apart from that, I'm not sure there's much more I can check, with
it working fine here :(

Cheers,

Matthew


> ----------------------------------------
> > Date: Wed, 12 Mar 2014 21:14:22 +0000
> > From: mcn4 at leicester.ac.uk
> > To: freeradius-users at lists.freeradius.org
> > Subject: Re: Issue with DHCP with Wireless card
> >
> > On Wed, Mar 12, 2014 at 02:44:37PM -0500, Hugh McLenaghan wrote:
> >> I'm hoping that the issue is something simple I've done wrong or missing.
> >
> > Doesn't help much, but I just tested with a WLAN card in my Linux
> > desktop (TP-LINK TL-WN772N, Atheros AR9271) and it worked straight
> > away; assigned an IP to my tablet, and saw the packets in tcpdump.
> >
> > It also worked on a Netgear WLAN card, also supposedly the same
> > chipset, though it's not a good card. When a DHCP Discover got
> > through, though, the Offer was successfully sent.
> >
> > I'll see if I can dig out the Pi to test, but this may take a
> > while as I've not fired it up for a bit.
> >
> > So it doesn't look like a problem with DHCP over a wireless
> > interface in general.
> >
> > Matthew
> >
> >
> >> ----------------------------------------
> >>> Date: Wed, 12 Mar 2014 14:00:07 -0400
> >>> From: aland at deployingradius.com
> >>> To: freeradius-users at lists.freeradius.org
> >>> Subject: Re: Issue with DHCP with Wireless card
> >>>
> >>> Hugh McLenaghan wrote:
> >>>> Starting FreeRADIUS:Wed Mar 12 11:10:22 2014 : Info: radiusd: FreeRADIUS Version 3.1.0 (git #b71e353), for host armv6l-unknown-linux-gnu, built on Mar 12 2014 at 01:50:59
> >>>
> >>> Please use v3.0.2 branch. The "master" branch is undergoing heavy
> >>> development. And also use "radiusd -X". Using "-Xx" doesn't help.
> >>>
> >>> Are you running this as root? The DHCP code requires that for proper
> >>> operation. You should also set the "interface" entry in the listen
> >>> section for dhcp. That will tell it to receive / send packets on the
> >>> correct interface.

-- 
Matthew Newton, Ph.D. <mcn4 at le.ac.uk>

Systems Specialist, Infrastructure Services,
I.T. Services, University of Leicester, Leicester LE1 7RH, United Kingdom

For IT help contact helpdesk extn. 2253, <ithelp at le.ac.uk>