Get real client IP from reverse proxy

Hey everyone, this is my first post here

I've recently set up a reverse proxy which works fantastically and protects my server's real IP. But now all players that log in get a "proxified" IP so I can't really ban based on IP or get proper statistics collected.

I know the proxy itself is probably passing the real IP in headers and I could figure out how to do it on some kind of a web server, but I have zero idea how I can have Minecraft/Bukkit do it.

Any help?

 

Banning based on IP isn't really the best choice, unplug your router for 10 minutes and you have a new one, unless its a static IP, but mostly they're dynamic.

 

Yeah I know it's not, and since I'm only allowing registered Minecraft players I don't rally need it. But I do need the real IP for several other things, like geolocation and other statistics.