---
name: "if_ural"
section: "4"
platform: "linux"
package: "freebsd-manpages"
version: "6.0-5"
release: "Debian 4.0 (Etch)"
platforms: ["linux", "freebsd"]
url: "https://new.carta.tech/if_ural"
---

# if\_ural(4)

Ralink Technology RT2500USB IEEE 802.11 driver

## NAME

**ural** – Ralink Technology RT2500USB IEEE 802.11 driver

## SYNOPSIS

To compile support for the

**ural** driver into your kernel, place the following lines in your kernel configuration file:

**device ehci** **device uhci** **device ohci** **device usb** **device ural** **device wlan**

Alternatively, to load the

**ural** driver at boot time, place the following line in [loader.conf(5)](/loader.conf/5.md):

```
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).

## HARDWARE

The following adapters should work:

| | |
| --- | --- |
| *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 |
| MSI MS-6861 | USB |
| MSI MS-6865 | USB |
| MSI MS-6869 | USB |
| OvisLink Evo-W54USB | USB |
| SerComm UB801R | USB |
| SparkLAN WL-685R | 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 ural0 inet 192.168.0.20 netmask 0xffffff00
```

Join a specific BSS network with network name “my\_net”:

```
ifconfig ural0 inet 192.168.0.20 netmask 0xffffff00 ssid my_net
```

Join a specific BSS network with 40-bit WEP encryption:

```
ifconfig ural0 inet 192.168.0.20 netmask 0xffffff00 ssid my_net \
    wepmode on wepkey 0x1234567890
```

Join a specific BSS network with 104-bit WEP encryption:

```
ifconfig ural0 inet 192.168.0.20 netmask 0xffffff00 ssid my_net \
    wepmode on wepkey 0x01020304050607080910111213
```

## DIAGNOSTICS

- ural%d: device timeout

  The driver will reset the hardware. This should not happen.

## SEE ALSO

[arp(4)](/arp/4.md), [netintro(4)](/netintro/4.md), [usb(4)](/usb/4.md), [wlan(4)](/wlan/4.md), [ifconfig(8)](/ifconfig/8.md) *Ralink Technology*, http://www.ralinktech.com/.

## HISTORY

The **ural** driver first appeared in OpenBSD 3.7.

## CAVEATS

The **ural** driver does not support automatic adaptation of the transmit speed.

## AUTHORS

The **ural** driver was written by Damien Bergamini ⟨damien@FreeBSD.org⟩.