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Old 06-09-2008, 11:12 PM   #1
Viper Chief
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What is wlan0:9?


I have a Thinkpad T61 with the Intel 3945 wireless. Everything was running ok with wireless until yesterday. To make a long story short (since I already posted it in the Mandriva forum), wireless is being picky. One thing I did notice today as I wrestled with it was that ifconfig reports a wlan0:9. I found that if I ran ifdown wlan0, then tried again to connect to my router, it worked and the wlan0:9. So, it makes me want to know...what is wlan0:9?
 
Old 06-10-2008, 12:44 AM   #2
pinniped
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That's bizarre; wlan0:9 is a virtual wireless interface operating over wlan0. For several years now, Linux has supported 'virtual network interfaces'. For every real interface you have (eth0, wlan0, etc etc), you can also run virtual interfaces (wlan0:0, wlan0:1 and so on).

Unless there is some need to run that virtual interface on your system, you should go through the network configuration files and fix them up so that you just get your normal wan0 (and of course, it should work).
 
  


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