URTW(4) 		 BSD Kernel Interfaces Manual		       URTW(4)

NAME
     urtw -- Realtek RTL8187B/L USB IEEE 802.11b/g wireless network device

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 urtw
	   device wlan

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

	   if_urtw_load="YES"

DESCRIPTION
     The urtw driver supports USB 802.11b/g wireless adapters based on the
     Realtek RTL8187B/L.

     urtw supports station and monitor mode operation.	Only one virtual
     interface may be configured at any time.  For more information on config-
     uring this device, see ifconfig(8).

HARDWARE
     The urtw driver supports Realtek RTL8187B/L based wireless network
     devices, including:

	   Card 			 Radio	    Bus
	   Netgear WG111v2		 RTL8225    USB
	   Safehome WLG-1500SMA5	 RTL8225    USB
	   Shuttle XPC Accessory PN20	 RTL8225    USB

EXAMPLES
     Join an existing BSS network (i.e., connect to an access point):

	   ifconfig wlan create wlandev urtw0 inet 192.168.0.20 \
	       netmask 0xffffff00

     Join a specific BSS network with network name ``my_net'':

	   ifconfig wlan create wlandev urtw0 ssid my_net up

     Join a specific BSS network with 64-bit WEP encryption:

	   ifconfig wlan create wlandev urtw0 ssid my_net \
		   wepmode on wepkey 0x1234567890 weptxkey 1 up

SEE ALSO
     intro(4), netintro(4), usb(4), wlan(4), wlan_ccmp(4), wlan_tkip(4),
     wlan_wep(4), ifconfig(8), wpa_supplicant(8)

     Realtek, http://www.realtek.com.tw.

HISTORY
     The urtw device driver first appeared in FreeBSD 8.0.

AUTHORS
     The urtw driver was written by Weongyo Jeong .

BSD				 July 25, 2009				   BSD