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wlan
Here you will find some tips how to use wireless-lan (WLAN) with grml. Basically WLAN should work out-of-the-box on grml, if consider any problems check out the tips on this page. If you still notice problems feel free to contact us.
| Wireless-LAN devices | ||||
|---|---|---|---|---|
| vendor | device name | chip | info | |
| Cisco | AIR-CB21AG | atheros | working | |
| Cisco | AIR-PCM352-RF | atheros (?) | working | |
| D-Link | DWL-122 | prism2 | working with wpa_supplicant and linux-wlan-ng | |
| D-Link | DWL-G650 | atheros | working | |
| Intel | PRO/Wireless 2200BG | ipw2200 | working | |
| Intel | PRO/Wireless 3945ABG | ipw3945 | working | |
| Linksys | WPC11 (802.11b) | unspecified | working | |
| Linksys | WPC54G (v2) | unspecified | working | |
| Linksys | WPC54G (v3) | unspecified | working; please take a look on [1] at the link-section on this page | |
| Linksys | WPC54GS | unspecified | working; please take a look on [1] at the link-section on this page ) | |
| Linksys | WMP54G | unspecified | working; please take a look on [1] at the link-section on this page | |
| Linksys | WMP54GS | unspecified | working; please take a look on [1] at the link-section on this page ) | |
| Netgear | WAG511 | atheros | working | |
| RaLink | Ralink RT2500 802.11 | unspecified | working; Cardbus Reference Card | |
| SMC | 2835W | prism54 | working | |
| Surecom | EP-9428-g (54 MBit) | unspecified | woking; notice: interface might be called raX, not ethX (e.g. ra0) | |
| Toshiba build-in | Wireless LAN Card | ?Lucent/Agere 6.14 | working (needs tweaking on hdinstall) |
If using the ipw2100 modules fails with something like:
ipw2100: eth1: Firmware 'ipw2100-1.3.fw' not available or load failed.
ipw2100: eth1: ipw2100_get_firmware failed: -2
ipw2100: eth1: Failed to power on the adapter.
ipw2100: eth1: Failed to start the firmware.
adjust the firmware loading timeout through:
modprobe firmware_class
echo 100 > /sys/class/firmware/timeout
rmmod ipw2100
modprobe ipw2100
You can use the fwtimeout bootoption to run this automatically during bootup. Useage example "grml fwtimeout=100".
You can get a more recent version of the linux-wlan-ng modules on grml 0.6 via running:
# aptitude update
# aptitude install linux-wlan-ng-modules-2.6.15-grml
Now your 802.11b-modules should be up to date.
A debian package of the madwifi-ng drivers is available in /usr/src/ on the grml 0.6 and grml 0.7 iso. Timo 'Spida' Boettcher thankfully contributed a script named 'ath-switcher' which tries to detect the Atheros chipset and install the madwifi-ng package if necessary. To manually install the package run 'dpkg -r madwifi-modules-$(uname -r) ; dpkg -i /usr/src/madwifi*.deb'.
- please update the linux-wlan-ng modules as mentioned above
- connect your device with the usb-bus
- load the required modules (see 'hwinfo --netcard'):
# modprobe prism2_usb
- configure and adapt the config-file (/etc/wpa_supplicant.conf)
- enable your wlan-device:
# wpa_supplicant -Bw -c/etc/wpa_supplicant.conf -Dhostap -iwlan0
- now you can configure your interface (static) with:
# ifconfig wlan0 your_ip netmask your_netmask
# vim /etc/resolv.conf # insert your nameserver
# route add default gw your_default_gateway
- or (dynamic network via dhcp):
# dhclient wlan0
This card get's detected after loading the needed module:
# modprobe orinoco_cs
On a HD-install pcmcia-utils don't get started by default, so modify the /etc/runlevel.conf to have an entry like this
# 40 - 2,3,4,5 /etc/init.d/pcmciautils
Or, add yenta_socket (and orinoco_cs) to /etc/modules. [added by jpjacobs]
Unfortunately it seems there are no prism cards available anymore. Nearly all wlan cards with prism chipsets use atheros now. Below is a list with cards which work flawlessly with grml using madwifi drivers.
- D-link DWL-G650 32bit cardbus (with atheros lettering below the speed specification)
- Netgear WG511T 108 Mbps Wireless 32bit cardbus (with atheros)
You should configure your card to your local frequencies with the right countrycodes (040 is Austria):
modprobe ath_pci countrycode=040
To make this changes permanently add the following line to /etc/modutils/options and execute update-modules:
options ath_pci countrycode=040
- -D<driver> --- here you can set the driver for your wlan-card. There are some drivers you can use:
hostap : prism 2/2.5/3
hermes : Hermes 1/Hermes 2
madwifi : madwifi (atheros, etc.)
atmel : ATMEL AT76C5XXx (USB, PCMCIA)
wext : Linux wireless extensions (generic)
ndiswrapper: Linux ndiswrapper
broadcom : Broadcom wl.o driver
ipw : Intel ipw2100/2200 driver
wired : wpa_supplicant wired Ethernet driver
bsd : BSD 802.11 support (Atheros, etc.)
ndis : Windows NDIS driver
- -i<interface> --- deliver the interface to wpa_supplicant
- -B --- starting a daemon in background
- -w --- wait for the interface
- -c<config-file> --- use this config-file
Information taken from wpa_supplicant README
- [1] See Jimmy's blog posting for instructions.
- atheros installation guide