Static network setup set up on Arch Linux using netctl

Network configuration using `netctl`, see <https://wiki.archlinux.org/index.php/Netctl>:

    cp /etc/netctl/examples/ethernet-static /etc/netctl/pcextreme

Change the config file `/etc/netctl/pcextreme` to:

    #!ini
    Description="Settings for PCextreme's Raspberry Pi Collocation"
    Interface=eth0
    Connection=ethernet
    IP=static
    Address=('582.631.871.22')
    #Routes=('192.168.0.0/24 via 192.168.1.2')
    Gateway='582.631.871.1'
    DNS=('8.8.8.8' '208.67.222.222')

    ## For IPv6 autoconfiguration
    IP6=stateless

    ## For IPv6 static address configuration
    #IP6=static
    #Address6=('1234:5678:9abc:def::1/64' '1234:3456::123/96')
    #Routes6=('abcd::1234')
    #Gateway6='1234:0:123::abcd'

Then start, test and then enable the profile (creates a systemd startup entry):

    #!bash
    # Testing etc.:
    ip link set eth0 down; sleep 1; netctl start pcextreme
    # When everything works fine, disable RaspberryPi's standard DHCP config and enable the netctl profile:
    systemctl disable dhcpcd@eth0; netctl enable pcextreme

You need to bring the interface down first or netctl will not take care of it. More [here](https://bbs.archlinux.org/viewtopic.php?id=161263).