URTW(4) | Device Drivers Manual | URTW(4)

# NAME

`urtw` —
Realtek RTL8187B/L USB IEEE 802.11b/g wireless network device

# SYNOPSIS

`urtw* at uhub? port ?`

# 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 configuring this device, see ifconfig(8).

# HARDWARE

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

Card | Radio | Bus
Belkin F5D7050E | RTL8225 | USB
Linksys WUSB54GCv2 | RTL8225 | USB
Netgear WG111v2 | RTL8225 | USB
Netgear WG111v3 | RTL8225 | USB
Safehome WLG-1500SMA5 | RTL8225 | USB
Shuttle XPC Accessory PN20 | RTL8225 | USB
Sitecom WL168v1 | RTL8225 | USB
Sitecom WL168v4 | RTL8225 | USB
SureCom EP-9001-g(2A) | RTL8225 | USB
TRENDnet TEW-424UB V3.xR | RTL8225 | USB

# EXAMPLES

ifconfig.if(5) example configures urtw0 to join whatever network is available on boot, using WEP key “0x1deadbeef1”, channel 11, obtaining an IP address using DHCP:

    nwkey 0x1deadbeef1 chan 11
    dhcp

Join an existing BSS network, “my_net”:

    # ifconfig urtw0 192.168.1.1 netmask 0xffffff00 nwid my_net

# SEE ALSO

arp(4), netintro(4), usb(4), ifconfig.if(5), wpa_supplicant.conf(5), ifconfig(8), wpa_supplicant(8) Realtek

# HISTORY

The `urtw` device driver first appeared in FreeBSD 8.0 and NetBSD 6.0.

# AUTHORS

The `urtw` driver was written by Weongyo Jeong ⟨weongyo@FreeBSD.org⟩.

January 12, 2015 | NetBSD 9.5