Ubuntu intrepid - static IP networking keeps restarting with DHCP

I've got a linux box with a static IP configured that seems to be ok. The static IP address works for a few hours, and then sets itself back with (what seems like) whatever DHCP tell it to use.

Here's my /etc/network/interfaces

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 10.0.0.101
netmask 255.255.255.0
network 10.0.0.0
broadcast 10.0.0.255
gateway 10.0.0.254

Any ideas?

I got the same problem on Ubuntu Server, but I think I managed to solve it. When I restart networking, dhclient3 is still running. Looking at it from htop, it has some “eth0″ in the arguments, so I suspected it was still looking for renewals of dhcp for eth0. I failed to remove dhcp-client with apt-get, so I ran:

sudo kill $(ps -aux | grep dhc | grep eth0 | awk '{print $2}')

NOTICE: This code might kill other things on your server! Take it easy and replace “eth0″ with the interface name for which you have set a static IP! Alternatively kill dhclient OR dhclient3 for your interface through htop.