---
name: "arl"
section: "4freebsd"
platform: "linux"
package: "freebsd-manpages"
version: "7.0-2"
release: "Debian 5.0 (Lenny)"
platforms: ["linux"]
url: "https://new.carta.tech/arl/4freebsd"
---

# arl(4freebsd)

Aironet Arlan 655 wireless network adapter driver

## NAME

**arl** – Aironet Arlan 655 wireless network adapter driver

## SYNOPSIS

To compile this driver into the kernel, place the following line in your kernel configuration file:

**device arl**

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

```
if_arl_load="YES"
```

## DESCRIPTION

The **arl** driver provides support for Aironet Arlan 655 wireless network adapters. The Arlan 655 series adapters operate at 354kbps, 512kbps, 1Mbps and 2Mbps.

The Aironet Arlan 655 devices support Aironet TMA, Aironet Non-TMA and PSP operating modes.

By default, the **arl** driver configures the Aironet Arlan 655 card for TMA operation.

To set up Radio Network parameters, use arlcontrol(8).

## SEE ALSO

[arp(4)](/arp/4.md), [netintro(4)](/netintro/4.md), arlcontrol(8), [ifconfig(8)](/ifconfig/8.md)

## LIMITATIONS

When using [ifconfig(8)](/ifconfig/8.md) for setting *SSID* you must use a 4-byte even hexadecimal digit value and it must start with 00 or 02.

You can change *channel* for current *country* only through [ifconfig(8)](/ifconfig/8.md). You must use arlcontrol(8) for changing *country*.

Cannot change link-level address.

## HISTORY

The **arl** device driver first appeared in FreeBSD 5.3.

## AUTHORS

The **arl** driver was initially written by Ivan Sharov ⟨ivan.sharov@iname.com⟩. ⟨ran@styx.aic.net⟩ wrote the arlcontrol(8) utility and added [ioctl(2)](/ioctl/2.md) support to the driver. Stanislav Svirid ⟨count@riss-telecom.ru⟩ ported this driver to the new ISA architecture, merged some al driver changes, fixed some bugs and made it a module. Yuri Kurenkov ⟨y.kurenkov@init.ru⟩ wrote this manpage.