Assimetric routing configuration

We have a server that runs under Fedora Core 3, and has two ethernet cards, the first (eth0) is NATed and through NAT, has 6 IPs available for customers. The second (eth1) has only one IP, and it's being used since DA (directadmin) can't accept NATed IPs for its licencing and updating, only for the updates and various DA-related issues. Both cards have different gateways thus the eth0 has a gateway of 10.0.x.x and the eth1 a gateway of 81.xx.x.x with all the network realted details being set up correctly. Our porblem: Services in the NATed IPs are inaccessible from the net, even though the router is being setup correctly. We have used a second machine on the same 10.0.x.x range (and netmask of course), and all services where accessible (e.g FTP, or DNS) but not from the NATed IPs outside. What you have to do is to fix this so as DA works properly and setup an example domain on this new server so as to know all is fine. You will be given ssh access and DA access to the server. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform *nix