We do not use OVH or KimsufiDo you see my issue with those two statements?
Aldryic has probably guessed right that it's an OVH Kimsufi. Don't get me wrong I have one myself for backups and a few other non public things.
I really don't think you are going to get far doing NAT, you had a post on WHT earlier trying to get help because it would not work!