Trying to config eth0 - Ubuntu

Linux and Unix-Like Ubuntu
1

Greetings,
I have installed a Ubuntu server and attempting put a static IP address on interface ETH0. I edited the /etc/network/interfaces with the following:

auto eth0
iface eth0 inet static
address 192.168.203.270
gateway 192.168.203.1
netwask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255

Following, I restarting the interfaces by the following commands:
/etc/init.d/networking restart

... and got the following error message: Failed to bring up eth0. I used the ifconfig eth0 up command with no success.

I attempted to ping interface eth0 with no success.

Please help anyone.

Thanks
Jay

2

address 192.168.203.270 <----------- Invalid IP Address

3

Neither of the four octets can have more than 255 as value, read wikipedia article