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I'm trying to connect via wifi but i keep getting this message: (I'm using NO interface)

SIOCSIFADDR: No such device

wlan0: ERROR while getting interface flags: No such device

wlan0: ERROR while getting interface flags: No such device

Bind socket to interface: No such device

Failed to bring up wlan0.

I've already edited the interfaces file on /etc/networks adding this line:

auto wlan0

iface wlan0 inet dhcp

and i cannot scan using "iwlist wlan0 scan"

How can I make this a Wi-Fi Client?

I'm using Debian GNU/Linux 6.0

wlan0 doesn't appear in the ifconfig -a output that is:

eth0      Link encap:Ethernet  HWaddr f0:ad:4e:00:da:29  
          UP BROADCAST RUNNING 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)
          Interrupt:11 

eth1      Link encap:Ethernet  HWaddr 02:50:43:4a:8c:9b  
          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)
          Interrupt:15 

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:146 errors:0 dropped:0 overruns:0 frame:0
          TX packets:146 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:14127 (13.7 KiB)  TX bytes:14127 (13.7 KiB)

pan0      Link encap:Ethernet  HWaddr 02:1f:77:39:8d:28  
          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:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

uap0      Link encap:Ethernet  HWaddr 00:24:23:78:08:69  
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::224:23ff:fe78:869/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:604 errors:0 dropped:0 overruns:0 frame:0
          TX packets:219 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:49186 (48.0 KiB)  TX bytes:18142 (17.7 KiB)
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  • Does a wlan0 interface show up in ifconfig output?
    – nodiscc
    Jan 9, 2013 at 22:34
  • nope. it doesn't. Here's my ifconfig output:
    – AAlvz
    Jan 11, 2013 at 20:16
  • I've updated the question.
    – AAlvz
    Jan 11, 2013 at 20:18
  • If the link is down, you won't see it in plain old ifconfig. Try ifconfig -a. Also, you didn't indicate your exact wireless hardware (try lspci -nnvv) which is crucial to know anything about how to answer this question. We also need to know which version of Debian from /etc/issue file. Also, if you are needing WEP or WPA support, you should use NetworkManager; all other methods of using the wifi stack are spotty at best. Jan 11, 2013 at 20:28
  • Is this info usefull? IEEE 802.11-DS ESSID:"dream-uAP-0869" Mode:Master Frequency:2.437 GHz Access Point: 00:24:23:78:08:69 Encryption key:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
    – AAlvz
    Jan 13, 2013 at 19:25

1 Answer 1

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Get your computer connected to the internet using the Ethernet cable, then from your terminal, choose which of the Debian distribution you prefer and run the deb http....., after choosing which of the debian distribution you wanna get your update from run continue to no 2

1

  • Debian 9 "Stretch"

deb http://httpredir.debian.org/debian/ stretch main contrib non-free

  • Debian 8 "Jessie"

deb http://httpredir.debian.org/debian/ jessie main contrib non-free

  • For Debian 7 "Wheezy"

deb http://httpredir.debian.org/debian/ wheezy main contrib non-free

2

Update the list of available packages and install the firmware-iwlwifi package by running: sudo apt-get update && sudo apt-get install firmware-iwlwifi

3

As the iwlwifi module is automatically loaded for supported devices, reinsert this module to access installed firmware: sudo modprobe -r iwlwifi ; modprobe iwlwifi

After which you might want to reboot your computer then run sudo ifconfig wlan0 up

I hope this helps

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