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Madwifi - Setting up an Ubuntu Wired/Wirless Router

This guide is only applicable for server installations of Ubuntu. If you are running a desktop installation of Ubuntu, try the [http://madwifi.org/wiki/ madwifi wiki] for more information.

Checking For Atheros Chipsets

First, verify that your wireless network adapter requires the madwifi device drivers.

Issue the following command: {{{sudo lspci | grep Atheros }}} If there is any output similar to that below, you should definitely install madwifi. {{{00:0e.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC (rev 01) }}} If there is no output, try looking through [http://madwifi.org/wiki/Compatibility] to see if your network adapter is supported.

Installation

Navigate to [http://madwifi.org/] and download and extract the latest version of the madwifi drivers (currently 0.9.2.1) {{{wget http://umn.dl.sourceforge.net/sourceforge/madwifi/madwifi-0.9.2.1.tar.gz tar -xvzf madwifi-0.9.2.1.tar.gz cd madwifi-0.9.2.1}}}

Download the necessary tools, compile and install the module {{{sudo apt-get install build-essential linux-headers-server make sudo make install}}}

Finally, create the file /etc/modprobe.d/madwifi and add the following to it: {{{options ath_pci autocreate=ap }}}

This will tell madwifi to set your wireless device (ath0) to master mode. Finally, load the module {{{sudo modprobe ath_pci }}}