urtw(4) Realtek RTL8187B/L USB IEEE 802.11b/g wireless network device


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.conf5:



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

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


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

Card  Radio   Bus
"Belkin F5D7050E        RTL8225 USB"
"Linksys WUSB54GCv2       RTL8225 USB"
"Netgear WG111v2RTL8225USB"
"Netgear WG111v3RTL8225USB"
"Safehome WLG-1500SMA5RTL8225USB"
"Shuttle XPC Accessory PN20RTL8225USB"
"Sitecom WL168v1RTL8225USB"
"Sitecom WL168v4RTL8225USB"
"SureCom EP-9001-g(2A)RTL8225USB"
"TRENDnet TEW-424UB V3.xRRTL8225USB"


Join an existing BSS network (i.e., connect to an access point):
ifconfig wlan create wlandev urtw0 inet \
    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


The device driver first appeared in Fx 8.0 .


An -nosplit The driver was written by An Weongyo Jeong Aq [email protected] .