[Watford] Raspberry Pi Wifi set-up?

Ishaq ishaqx at gmail.com
Sat Jul 21 22:08:35 UTC 2012


Just to add to Jim's email, if you're using WPA based authentication, have
you got the supplicant installed?
 On Jul 21, 2012 11:06 PM, "Dimitrios Siganos" <dimitris at siganos.org> wrote:

> Hi Jim,
>
> And welcome to the group. I am relatively new here too.
>
> The ifconfig "up" status could mean various things. I don't think it is
> a reliable indication of Wifi link status.
>
> Try instead the commands:
> * ip link
> * ip addr
> to get better reporting of network status.
>
> I don't think the problem is with the router. If you notice the counters
> for the Wifi interface, they are all zeros, which makes me thing that
> DHCP hasn't even tried to send a single packet.
>
> What could be wrong?
>
> 1) You might not be getting a Wifi link. What kind of Wifi network are
> you connecting to? Have you tried to "open/unsecured" network?
>
> 2) Maybe the Wifi link is up but DHCP is not triggered.
>
> Other useful commands:
> * ip monitor
> * iw event
> * iw dev wlan0 link
> * iwconfig
>
> Regards,
> Dimitris
>
> On 21/07/12 22:31, Jim Ford wrote:
> > I'm trying to get wifi set up on my raspberry pi.
> >
> > I'm running the raspberry 'headless' with a network cable, and a ssh
> > using 'putty'.
> >
> > The USB dongle driver works ok as indicated by lsusb and lsmod, and also
> > the wlan0 interface comes up, as shown below. Also iwlist wlan0 scan
> > shows my router (and others):
> >
> > eth0      Link encap:Ethernet  HWaddr b8:27:eb:d9:33:aa
> >           inet addr:192.168.1.128  Bcast:192.168.1.255
>  Mask:255.255.255.0
> >           inet6 addr: fe80::ba27:ebff:fed9:33aa/64 Scope:Link
> >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> >           RX packets:1039 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:1452 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:1000
> >           RX bytes:63698 (62.2 KiB)  TX bytes:190755 (186.2 KiB)
> >
> > lo        Link encap:Local Loopback
> >           inet addr:127.0.0.1  Mask:255.0.0.0
> >           inet6 addr: ::1/128 Scope:Host
> >           UP LOOPBACK RUNNING  MTU:16436  Metric:1
> >           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:0
> >           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
> >
> > wlan0     Link encap:Ethernet  HWaddr 48:02:2a:eb:ae:b2
> >           UP BROADCAST MULTICAST  MTU:1500  Metric:1
> >           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:1000
> >           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
> >
> > The problem appears to be that although I'm getting an IP address from
> > my router for eth0, I'm not getting one for the wlan0 interface.
> >
> > I'm wondering whether the eth0 interface somehow inhibits the wlan0 from
> > getting an IP
> >
> > I'd be grateful for any pointers to where the problem might lie, please.
> >
> >
> > BTW. I only discovered the Watford Linux Group this evening. I'm a
> > Watford resident and have tinkered with Linux for some years, though I'm
> > no expert. I hope to get to the 'Sportsman' this Thursday.
> >
> > Jim
> >
> > _______________________________________________
> > Watford mailing list
> > Watford at mailman.lug.org.uk
> > https://mailman.lug.org.uk/mailman/listinfo/watford
>
>
>
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> Watford at mailman.lug.org.uk
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