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download PDF document: ural.4.pdf

URAL(4) FreeBSD Kernel Interfaces Manual URAL(4)
NAME ural - Ralink Technology RT2500USB IEEE 802.11 driver
SYNOPSIS To compile this driver into the kernel, place the following lines in your kernel configuration file:
device ehci device uhci device ohci device usb device ural device wlan device wlan_amrr
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_ural_load="YES"
DESCRIPTION The ural driver supports USB 2.0 wireless adapters based on the RT2500USB chipset.
The RT2500USB chipset consists of two integrated chips, a RT2570 MAC/BBP and a radio transceiver (the model of which depends on the card revision).
The RT2522, RT2523, RT2524, RT2525, RT2525e and RT2526 radio transceivers operate in the 2.4GHz band (802.11b/g) whereas the RT5222 is a dual-band radio transceiver that can operate in the 2.4GHz and 5.2GHz bands (802.11a).
ural supports station, adhoc, hostap, and monitor mode operation. Only one virtual interface may be configured at any time. For more information on configuring this device, see ifconfig(8).
HARDWARE The ural driver supports USB 2.0 wireless adapters based on the Ralink Technology RT2500USB chipset, including:
Card Bus AMIT WL532U USB ASUS WL-167g USB Belkin F5D7050 v2000 USB Buffalo WLI-U2-KG54-AI USB CNet CWD-854 USB Compex WLU54G 2A1100 USB Conceptronic C54RU USB D-Link DWL-G122 b1 USB Dynalink WLG25USB USB E-Tech WGUS02 USB Gigabyte GN-WBKG USB Hercules HWGUSB2-54 USB KCORP LifeStyle KLS-685 USB Linksys WUSB54G v4 USB Linksys WUSB54GP v4 USB Surecom EP-9001-g USB Sweex LC100060 USB Tonze UW-6200C USB Zinwell ZWX-G261 USB Zonet ZEW2500P USB
An up to date list can be found at http://ralink.rapla.net/.
EXAMPLES Join an existing BSS network (i.e., connect to an access point):
ifconfig wlan create wlandev ural0 inet 192.168.0.20 \ netmask 0xffffff00
Join a specific BSS network with network name "my_net":
ifconfig wlan create wlandev ural0 ssid my_net up
Join a specific BSS network with 64-bit WEP encryption:
ifconfig wlan create wlandev ural0 ssid my_net \ wepmode on wepkey 0x1234567890 weptxkey 1 up
Join a specific BSS network with 128-bit WEP encryption:
ifconfig wlan create wlandev ural0 wlanmode adhoc ssid my_net \ wepmode on wepkey 0x01020304050607080910111213 weptxkey 1
DIAGNOSTICS ural%d: device timeout The driver will reset the hardware. This should not happen.
SEE ALSO intro(4), netintro(4), usb(4), wlan(4), wlan_amrr(4), wlan_ccmp(4), wlan_tkip(4), wlan_wep(4), wlan_xauth(4), hostapd(8), ifconfig(8), wpa_supplicant(8)
HISTORY The ural driver first appeared in OpenBSD 3.7.
AUTHORS The original ural driver was written by Damien Bergamini <damien.bergamini@free.fr>.
BUGS Host AP mode doesn't support client power save. Clients using power save mode will experience packet loss (disabling power saving on the client will fix this).
FreeBSD 14.0-RELEASE-p6 April 13, 2008 FreeBSD 14.0-RELEASE-p6