Tunnel / masquerade single ip
I'm running 2 servers for a client, one of which has been whitelisted to use a third party's services. Because of capacity problems, we would like to allow the second server to access this external service as well, but it takes a long time to get an extra ip whitelisted.
What I would like to do, is to let server number 2 communicate with the service using the same IP as server number 1. My idea was to set up NAT using iptables on server 1 and then configure server 2 to use server 1 as a gateway, but only for this specific destination.
Is this possible? So far, my own attempts have failed. After googling, I found some example setups, but they are not exactly what I need and my networking skills are too limited to know how to adapt them.
Thanks in advance for any help!