Java Programming

This question's probably been asked a hundred times but it's new to me and I haven't found anything directly helpful in my newbieness. I have a servlet running on Tomcat on a remote machine. The application is a web site. What I want to do is have some links on the index page that go to a secure server out in The Great Cloud Of The Intertubes. Now I can't just put plain html links on the index page, because then if you click on them, naturally your browser will go to the secure server to try and get pages from it. The way the secure server is set up, it looks at the requesting IP address and if you're not on the invite list, then you don't get in. The remote machine with the Tomcat server on it has an approved IP address, so the secure server will talk it, just not to me here as my IP is different.

So, question is, how do I set up a mechanism so that you click on a link on the index page for the URL you want, Tomcat takes this and sends the request to the secure server, the secure server sends the page(s) back to Tomcat and then Tomcat throws it at your browser?

Thanks for any help on this.