Ubuntu – What’s the default /etc/network/interfaces

You have:

address         192.168.1.200 # the IP address of the Ethernet port

and report that this is the line that isn't working. Are you aware, from interfaces(5), that:

   Lines starting with `#' are ignored. Note  that  end-of-line  comments
   are NOT supported, comments must be on a line of their own.

Did you add the end-of-line comments for the question, or do you actually have them in your /etc/network/intefaces file? If so, try removing them.

Try this interfaces file:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
    address 173.213.192.234
    netmask 255.255.255.248
    gateway 173.213.192.233
    dns-nameservers 8.8.8.8

auto eth1
iface eth1 inet static
    address 10.0.0.106
    netmask 255.255.255.0
    up route add -net 10.0.0.0 netmask 255.0.0.0 gw 10.0.0.1
    up route add -net 172.16.0.0 netmask 255.240.0.0 gw 10.0.0.1
    up route add -net 192.168.0.0 netmask 255.255.0.0 gw 10.0.0.1

This will redirect all local traffic to 10.0.0.1 and Internet to 173.213.192.233.