irradium

network configuration

The network configuration is found in the service script /etc/rc.d/net. By default this service script is not configured to connect to the network. Example:

#!/bin/bash
#
# /etc/rc.d/net: start/stop network interface
#

DHCP_OPTS="-t 10 -b"

# If USE_DHCP[interface] is set to "yes", this overrides any other settings.
# If you don't have an interface, leave the settings null ("").

# ----------------------------------------

# ipv4 config options for eth0
DEV[0]=""
ADDR[0]=""
MASK[0]=""
USE_DHCP[0]=""

# ipv4 config options for eth1
DEV[1]=""
ADDR[1]=""
MASK[1]=""
USE_DHCP[1]=""

# ipv4 config options for eth2
DEV[2]=""
ADDR[2]=""
MASK[2]=""
USE_DHCP[2]=""

# ipv4 default gateway ip address
GW=""

# ----------------------------------------

case $1 in
    start)
        for i in ${!DEV[@]}; do
            if [ "${USE_DHCP[$i]}" = "yes" ]; then
                /sbin/dhcpcd ${DHCP_OPTS} ${DEV[$i]}
            elif [ ! -z "${DEV[$i]}" -a ! -z "${ADDR[$i]}" -a ! -z "${MASK[$i]}" ]; then
                /sbin/ip addr add ${ADDR[$i]}/${MASK[$i]} dev ${DEV[$i]} broadcast +
                /sbin/ip link set ${DEV[$i]} up
            fi
        done
        if [ ! -z $GW ] ; then
            /sbin/ip route add default via ${GW}
        fi
        ;;
    stop)
        if [ ! -z $GW ] ; then
            echo /sbin/ip route del default
        fi
        for i in ${!DEV[@]}; do
            if [ "${USE_DHCP[$i]}" = "yes" ]; then
                /sbin/dhcpcd -k ${DEV[$i]}
            elif [ ! -z "${DEV[$i]}" -a ! -z "${ADDR[$i]}" -a ! -z "${MASK[$i]}" ]; then
                /sbin/ip link set ${DEV[$i]} down
                /sbin/ip addr del ${ADDR[$i]}/${MASK[$i]} dev ${DEV[$i]}
            fi
        done
        ;;
    restart)
        $0 stop
        sleep 1
        $0 start
        ;;
    *)
        echo "Usage: $0 [start|stop|restart]"
        ;;
esac

# End of file

To enable a network with dynamic address acquisition (dhcp), you must specify the network interface and enable the use of dhcp:

DEV[0]="eth0"
ADDR[0]=""
MASK[0]=""
USE_DHCP[0]="yes"

For WiFi, you must make the following settings /etc/rc.d/net:

DEV[0]="wlan0"
ADDR[0]=""
MASK[0]=""
USE_DHCP[0]="yes"

And also configure /etc/rc.d/wpa_supplicant:

DEV=wlan0

And configure authorization in /etc/wpa_supplicant.conf:

network={
   ssid="register the name of the access point"
   scan_ssid=1
   key_mgmt=WPA-PSK
   psk="register a password"
}

If you need to work with a static address, make the following settings:

DEV[0]="eth0"
ADDR[0]="192.168.0.254"
MASK[0]="255.255.255.0"
USE_DHCP[0]=""

# ipv4 default gateway ip address
GW="192.168.0.1"

You will also need to configure DNS settings in /etc/resolv.conf:

#
# /etc/resolv.conf: resolver configuration file
#

search your internal domain>
nameserver your DNS server>

# End of file

The wpa_supplicant package provides two startup scripts in /etc/rc.d. You might choose to put wlan in the SERVICES array of /etc/rc.conf, which will let wpa_supplicant manage all your network interfaces. Another option is to let the net startup script call wpa_supplicant as needed, by copying into /lib/dhcpcd/dhcpcd-hooks/ the example file /usr/share/dhcpcd/hooks/10-wpa_supplicant.