auto lo
  auto eth0
  #auto eth0:0
  
  iface lo inet loopback
  iface eth0 inet dhcp
  #iface eth0 inet static
  #address 210.61.131.67
  #netmask 255.255.255.0
  #gateway 210.61.131.254
  #post-up route add default gw 210.67.131.254 metric 1
  #pre-down route del default gw 210.67.131.254
  
  #iface eth0:0 inet static
  #address 10.0.0.126
  #netmask 255.255.255.0
  #post-up route add default gw 10.0.0.254 metric 2
  #pre-down route del default gw 10.0.0.254
  
  #auto wlan0
  #allow-hotplug wlan0
  #iface wlan0 inet manual
  #wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
  #iface default inet dhcp