How do I /sbin/ifup wlan0 (Wireless Lan device)

Thu Nov 14 00:17:00 2002

Hi All,

Having trouble bringing up my Wireless Lan with the /sbin/ifup wlan0 
command.

I get the error:
"Determining IP information for wlan0...Operation failed."

The file:
/etc/sysconfig/network-scripts/ifcfg-wlan0

contains:

NAME='PowerBook WLAN'
DEVICE='wlan0'
IPADDR=
BOOTPROTO=dhcp
ONBOOT='yes'
NETMASK=
GATEWAY=

If I change BOOTPROTO=none, then I get:
SIOCSIFFLAGS: No such device

The result of /sbin/ifconfig wlan0 is:

wlan0     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          BROADCAST NOTRAILERS  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:100
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:58 Base address:0x100

Any help mucho appreciated! ;-)

Cheers,
Bernie Mentink