---
name: "if_aue"
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_aue"
---

# if\_aue(4)

ADMtek AN986 Pegasus USB Ethernet driver

## NAME

**aue** – ADMtek AN986 Pegasus USB Ethernet driver

## SYNOPSIS

To compile support for the

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

**device uhci** **device ohci** **device usb** **device miibus** **device aue**

Alternatively, to load the

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

```
if_aue_load="YES"
```

## DESCRIPTION

The **aue** driver provides support for USB Ethernet adapters based on the ADMtek AN986 Pegasus chipset.

The LinkSys USB10T adapters that contain the AN986 Pegasus chipset will operate at 100Base-TX and full-duplex.

The Pegasus contains a 10/100 Ethernet MAC with MII interface and is designed to work with both Ethernet and HomePNA transceivers. Although designed to interface with 100Mbps peripherals, the existing USB standard specifies a maximum transfer speed of 12Mbps. Users should therefore not expect to actually achieve 100Mbps speeds with these devices.

The Pegasus supports a 64-bit multicast hash table, single perfect filter entry for the station address and promiscuous mode. Packets are received and transmitted over separate USB bulk transfer endpoints.

The **aue** driver supports the following media types:

- autoselect

  Enable autoselection of the media type and options. The user can manually override the autoselected mode by adding media options to the */etc/rc.conf* file.

- 10baseT/UTP

  Set 10Mbps operation. The *mediaopt* option can also be used to enable *full-duplex* operation. Not specifying *full* *duplex* implies *half-duplex* mode.

- 100baseTX

  Set 100Mbps (Fast Ethernet) operation. The *mediaopt* option can also be used to enable *full-duplex* operation. Not specifying *full* *duplex* implies *half-duplex* mode.

The **aue** driver supports the following media options:

- full-duplex

  Force full duplex operation. The interface will operate in half duplex mode if this media option is not specified.

For more information on configuring this device, see [ifconfig(8)](/ifconfig/8.md).

## HARDWARE

Adapters supported by the **aue** driver include:

- Abocom UFE1000, DSB650TX\_NA

- Accton USB320-EC, SpeedStream

- ADMtek AN986, AN8511

- Billionton USB100, USB100LP, USB100EL, USBE100

- Corega Ether FEther USB-T, FEther USB-TX, FEther USB-TXS

- D-Link DSB-650, DSB-650TX, DSB-650TX-PNA

- Elecom LD-USBL/TX

- Elsa Microlink USB2Ethernet

- HP hn210e

- I-O Data USB ETTX

- Kingston KNU101TX

- LinkSys USB10T adapters that contain the AN986 Pegasus chipset, USB10TA, USB10TX, USB100TX, USB100H1

- MELCO LUA-TX, LUA2-TX

- Planex UE-200TX

- Sandberg USB to Network Link (model number 133-06)

- Siemens Speedstream

- SmartBridges smartNIC

- SMC 2202USB

- SOHOware NUB100

## DIAGNOSTICS

- aue%d: watchdog timeout

  A packet was queued for transmission and a transmit command was issued, however the device failed to acknowledge the transmission before a timeout expired.

- aue%d: no memory for rx list

  The driver failed to allocate an mbuf for the receiver ring.

## SEE ALSO

[arp(4)](/arp/4.md), [miibus(4)](/miibus/4.md), [netintro(4)](/netintro/4.md), [ng\_ether(4)](/ng_ether/4.md), [ifconfig(8)](/ifconfig/8.md) *ADMtek AN986 data sheet*, http://www.admtek.com.tw.

## HISTORY

The **aue** device driver first appeared in FreeBSD 4.0.

## AUTHORS

The **aue** driver was written by Bill Paul ⟨wpaul@ee.columbia.edu⟩.