I’m going to try and explain this the best I can, and hope you all understand what I’m talking about. So here goes…
My customer has a Frame-Relay T1 into a Cisco Router (Which provides a firewall). Customer runs his web-page off of a Linux server and has some content on an NT running a Web Server+SSL. He also has 13 or so pcANYWHERE hosts for remote access (I know, BIG security no-no).
The customer does not possess the password to the router so they get to pay $200 every time they want to make a change. And access to the pcANYWHERE hosts are currently unsecured.
The Linux server has two network adapters; one public and one private. The ideal situation is to put the Linux server in between the router and the rest of the network. To do that, I am required to move all the public hosts and servers into the local network and somehow map ports from the public IPs through the firewall. Outbound traffic is not a problem thanks to IP masquerading.
The problem is that I do not know how to get the Linux server to answer requests for IPs that are not bound to its interfaces.
Any suggestions would be greatly appriciated.