It is assumed when we use REALIP_MODULE and purposely set REMOTE_ADDR to real ip of our proxies in front
that this is the real client IP that GEOIP should be using.

example:
proxy of nginx in front of a fastcgi nginx.

Proxy config:
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

Fast cgi config:
real_ip_header X-Real-IP;
set_real_ip_from x.x.x.x;

This ends up setting REMOTE_ADDR correctly for Fastcgi nginx server, but GEOIP parses information for
proxy connecting IP instead giving false information.