root@mityT1-dev:/lib/systemd/system# more networking.service

[Unit]
Description=Networking
Before=getty@tty1.service display-manager.service app.service
After=dev-tty1.device

[Service]
ExecStart=-/etc/init.d/networking start

Type=oneshot

[Install]
WantedBy=multi-user.target
root@mityT1-dev:/lib/systemd/system# 



# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
 
# The loopback interface
auto lo
iface lo inet loopback

# Wireless interfaces
iface wlan0 inet dhcp
        wireless_mode managed
        wireless_essid any
        wpa-driver wext
        wpa-conf /etc/wpa_supplicant.conf

iface atml0 inet dhcp

# Wired or wireless interfaces
auto eth0
iface eth0 inet dhcp
        hostname mityT1-dev  # set to my host name
 
iface eth1 inet dhcp

# Ethernet/RNDIS gadget (g_ether)
# ... or on host side, usbnet and random hwaddr
iface usb0 inet static
        address 192.168.7.2
        netmask 255.255.255.0
        network 192.168.7.0
        gateway 192.168.7.1

# Bluetooth networking
iface bnep0 inet dhcp