Where is wlan0, I've only got ethX

Jay Strauss jjstrauss at gmail.com
Mon Nov 14 02:15:18 UTC 2005


Hi,

I just did a new install of breezy on a Thinkpad A30.  It has a wireless card 
(prism 2.x).  But when I do ifconfig -a  all I have are 'eth' entries.  Same 
goes when I do iwconfig

Furthermore I only have 2 NICs in this machine, a 10/100 wired and a wireless 
where is "eth2" coming from?

Why don't I have a wlan0 entry?

Do I need to do something different during installation?

Thanks
Jay

(Below are outputs from commands I thought you might need to see)

jstrauss at ubuntu:~$ ifconfig -a
eth0      Link encap:UNSPEC  HWaddr 
00-20-E0-89-8F-E2-00-79-00-00-00-00-00-00-00
-00  
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:2363 errors:0 dropped:0 overruns:0 frame:0
          TX packets:36 errors:0 dropped:111 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:262887 (256.7 KiB)  TX bytes:3805 (3.7 KiB)
          Interrupt:11 Memory:d8ae0000-d8ae1000 

eth1      Link encap:Ethernet  HWaddr 00:D0:59:83:5F:D2  
          inet addr:192.168.1.119  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::2d0:59ff:fe83:5fd2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10031 errors:0 dropped:0 overruns:0 frame:0
          TX packets:9218 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:5891595 (5.6 MiB)  TX bytes:1096907 (1.0 MiB)

eth2      Link encap:Ethernet  HWaddr 00:20:E0:89:8F:E2  
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:1140 errors:0 dropped:837 overruns:0 frame:0
          TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:115837 (113.1 KiB)  TX bytes:3461 (3.3 KiB)
          Interrupt:11 Memory:d8ae0000-d8ae1000 

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:45 errors:0 dropped:0 overruns:0 frame:0
          TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:3904 (3.8 KiB)  TX bytes:3904 (3.8 KiB)

sit0      Link encap:IPv6-in-IPv4  
          NOARP  MTU:1480  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)

jstrauss at ubuntu:~$ cat /etc/network/interfaces | grep -v \#

auto lo
iface lo inet loopback

mapping hotplug
        script grep
        map eth1

iface eth1 inet dhcp

auto eth2
iface eth2 inet static
address   192.168.1.2
network   192.168.1.0
netmask   255.255.255.0
broadcast 192.168.1.255
gateway   192.168.1.1


jstrauss at ubuntu:~$ iwconfig 
lo        no wireless extensions.

eth1      no wireless extensions.

Warning: Driver for device eth0 recommend version 18 of Wireless Extension,
but has been compiled with version 17, therefore some driver features
may not be available...

eth0      IEEE 802.11b  ESSID:"StayOffChannelOne"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 44:44:44:44:44:44   
          Bit Rate:11 Mb/s   Sensitivity=1/3  
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Power Management:off
          
eth2      IEEE 802.11b  ESSID:"StayOffChannelOne"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 44:44:44:44:44:44   
          Bit Rate:11 Mb/s   Sensitivity=1/3  
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=30/70  Signal level=-66 dBm  Noise level=-97 dBm
          Rx invalid nwid:0  Rx invalid crypt:743  Rx invalid frag:0
          Tx excessive retries:2  Invalid misc:5856   Missed beacon:0

sit0      no wireless extensions.




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