Not quite sure how to explain this but here goes.
I have a network which has a number of servers hosting various services. That network is losing its static IPs soon because it is no longer an essential service. However, we'd like to keep the servers running but on a cheap dynamic IP connection.
We have another network which is our main network and it has plenty of static IPs.
The idea is that on that second network, we would set up <something> which would allow remote connections to some of those IPs which in turn would redirect that traffic to the now dynamic IP network.
Since the dynamic network isn't critical, we can mess around with ports and use custom ports for what ever we need.
The question is, what are we looking for, to set up on one of the Centos servers on the second network which would redirect those connections to the dynamic network? Are we thinking dynamic DNS server or something else?
How will the dynamic network tell the second network about it's potentially changed IP when it does change? Do we need to set something up on the first network which will constantly broadcast its IP back to the second network?