Consolidate multiple IPs as Proxy server

[0bitus]

My ISP allows me to get multiple public IPs from a single modem. There is only one ethernet port on the modem, but if I connect 5 devices to it via a switch, each will have it's own public ipv4 address. IPs are dynamic but stay reserved for a while to the last accessing MAC address.
I want to dedicate a pc to act as a proxy server, allowing remote connection to these IPs.
Please give me your suggestions how can I do this, as my networking knowledge is not that good and I have no idea how to approach this. I'd prefer to make this on Windows OS without coding, but any information and guidance will be of great help!

[Dieselboy]

Hi 0bitus,

May I ask the reason why you feel you need a proxy server? What is the purpose? Or rather what is the goal which you are trying to achieve?

If as you say, those IPs are public IPs then everyone globally already has access to them. So may be I dont understand your objective.

[0bitus]

I dont understand your objective.

That's on me. I will try explaining in more detail:
I can install a proxy server like CCproxy on my home PC and then connect through it from anywhere in the world like any regular proxy and browse the internet with the IP of the home PC.
I want to do this not for one IP but for 6-7 IPs that I can all get from my ISPs modem on the same cable just by requesting them with different MAC addresses.
But I don't want to connect 6-7 PCs and install a proxy server on each one of them and have them always on, I need a solution, if possible, to do this from one PC.

[icecream-guy]

Term is 'reverse proxy',   you'd need to assign the 6-7 IPs to the proxy server, for it to act on any inbound traffic to hosts behind the reverse proxy on said IPs.

Another option might be to install a router and use static routes on router to differentiate routing to different hosts via .1 versus .2 - .7
e.g .1 might route to the firewall, and .2 - .7 might route to the RP