OpenADK uses Busybox ifupdown mechanism to configure the network via /etc/network/interfaces.

Example for loopback device configuration:

auto lo
iface lo inet loopback

Example for an ethernet network card:

auto eth0
iface eth0 inet static
  address 192.168.1.1
  netmask 255.255.255.0
  broadcast +
  gateway 192.168.1.254

The DNS resolver must be manually configured in /etc/resolv.conf. The plus for the broadcast value, will calculate the correct broadcast address for the network.

Example for an ethernet network card:

auto eth0
iface eth0 inet dhcp

Example for a network bridge with two ethernet network interfaces and an ip address:

auto br0 
iface br0 inet static
        address 192.168.99.1
        netmask 255.255.255.0
        broadcast +
        bridge-ports eth0 eth1

Just a bridge without an ip address:

auto br0 
iface br0 inet manual
         bridge-ports eth0 eth1

You need to install either Busybox brctl applet or the bridge-utils package. The required kernel modules will be automatically selected.

Example configuration of a network interface with VLAN ID 8 without any ip configuration:

auto eth0.8
iface eth0.8 inet manual

You need to install Busybox vconfig applet. The required kernel modules will be automatically selected.

Typical DSL configuration:

auto ppp0
iface ppp0 inet ppp
	use-template pppoe
	provider isp
	ppp-mtu 1412
	ppp-username foo
	ppp-password bar
	ppp-device eth1

The provider can be used as argument for „pon“ and „poff“ commands. You need to install the ppp and ppp-mod-pppoe package. The required kernel modules will be automatically selected.

Example wireless client configuration, secured with WPA2:

auto wlan0
iface wlan0 inet dhcp
        wireless-ssid myap
        wireless-channel 11
        wireless-mode sta
        wireless-security wpa2
        wireless-passphrase xxxxxx

You need to install iw and wpa_supplicant packages. For older wireless drivers you need to install wireless-tools instead of iw and use the following variable to choose the right tools:

wireless-extension 1 

To configure an access point use following example:

auto wlan0
iface wlan0 inet static
        address 192.168.40.10
        netmask 255.255.255.0
        broadcast +
        wireless-ssid myap
        wireless-channel 8
        wireless-mode ap
        wireless-security wpa2
        wireless-passphrase xxxxxx

You need to install hostapd and iw/wireless-tools packages.

If you have a HSO UMTS modem, you can use following to configure internet access:

auto hso0
iface hso0 inet manual
	pin 1234
	apn your.apn

For example a configuration on a Linksys AG241 router with integrated DSL modem, you can configure two ATM devices to distinguish between Internet and IPTV traffic:

auto eth0.1 
iface eth0.1 inet manual

auto eth0.8
iface eth0.8 inet manual

auto nas0
iface nas0 inet manual

auto nas1
iface nas1 inet manual
        atm-vpi 1
        atm-vci 34

auto br0
iface br0 inet manual
        bridge-ports eth0.1 nas0

auto br1
iface br1 inet manual
        bridge-ports eth0.8 nas1

More network setups can be implemented on request.