Lan Barnes wrote:
On Tue, June 17, 2008 1:21 pm, Michael O'Keefe wrote:
Carl Lowenstein wrote:
On Tue, Jun 17, 2008 at 10:31 AM, <[EMAIL PROTECTED]> wrote:
Is it possible to *create* a new wifi interface in Linux?
I keep trying to do "ifup eth1", "ifup wlan0", "ifup wifi0"
and everything gives me error messages about interface not existing.
How create a wifi interface then to make Linux happy?
What variety of Linux are you using? What hardware?
Many recent (past few years) distributions have GUI programs to set up
wireless communication. After setup, you can use another GUI to turn
the wireless on and off, or use the command-line "ifup" "ifdown" to do
the same thing.
ifup/ifdown is a RedHat-ism isn't it ?
If so, you need the configuration file in
/etc/sysconfig/networks-scripts/ifcfg-<interface>
You will also (IIRC) needs the wireless-tools package which contains
iwlist and iwconfig. I am sssuming you have the driver for your wireless
device installed properly too. If not, or you need help on it, we need
more information about your WiFi device to activate it.
I usually (when at an airport or sumsuch) use...
/sbin/iwlist eth1 scanning
to find the name of the WAP's available.
I then add that name to my ifcfg-eth1-road file, which looks like :
DEVICE=eth1
BOOTPROTO=dhcp
ONBOOT=no
ESSID=Qantas_Hotspot
Obviously, the last airport lounge I was in was Qantas' :)
*THEN* I can ifup eth1-road
What Michael said plus there is a GUI tool under system/administration in
RH and its children. It does the same stuff, so the CLI is just fine, too.
I've *NEVER* had any success with that tool.
I've never bothered to look into WHY NOT, either.
I have my CLI, that's all I need ;)
BTW, since ifcfg-<devicename> is just a list of bash variables, you can...
echo ESSID="hotspot">>/etc/sysconfig/network-scripts/ifcfg-<device-name>
all day long. Last one wins !
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