Realtek RTL8187L/RTL8187B USB IEEE
802.11b/g wireless network device
urtw* at uhub? port ?
urtw driver supports USB 802.11b/g
wireless adapters based on the Realtek RTL8187L and RTL8187B.
These are the modes the
urtw driver can
- BSS mode
- Also known as infrastructure mode, this is used when associating with an access point, through which all traffic passes. This mode is the default.
- monitor mode
- In this mode the driver is able to receive packets without associating with an access point. This disables the internal receive filter and enables the card to capture packets from networks which it wouldn't normally have access to, or to scan for access points.
urtw driver can be configured to use
Wired Equivalent Privacy (WEP) or Wi-Fi Protected Access (WPA-PSK and
WPA2-PSK). WPA is the current encryption standard for wireless networks. It
is strongly recommended that WEP not be used as the sole mechanism to secure
wireless communication, due to serious weaknesses in it. The
urtw driver relies on the software 802.11 stack for
both encryption and decryption of data frames.
urtw driver can be configured at
ifconfig(8) or on boot with
The following adapters should work:
- Alfa AWUS036H
- ASUS P5B Deluxe
- Belkin F5D7050E
- Digitus DN-7003GT
- Linksys WUSB54GC v2
- Netgear WG111v2
- Netgear WG111v3
- Shuttle XPC Accessory PN20
- Sitecom WL-168 v1
- Sitecom WL-168 v4
- Surecom EP-9001-g rev 2A
- TRENDnet TEW-424UB V3.xR
The following example scans for available networks:
# ifconfig urtw0 scan
The following hostname.if(5) example configures urtw0 to join network “mynwid”, using WPA key “mywpakey”, obtaining an IP address using DHCP:
nwid mynwid wpakey mywpakey dhcp
arp(4), ifmedia(4), intro(4), netintro(4), usb(4), hostname.if(5), ifconfig(8)
Realtek Semiconductor: http://www.realtek.com.tw/
urtw device driver first appeared in
urtw driver was written by