use_x_forwarded_for boolean (optional, default: false)
Enable parsing of the X-Forwarded-For header, passing on the client’s correct IP address in proxied setups. You must also whitelist trusted proxies using the trusted_proxies setting for this to work. Non-whitelisted requests with this header will be considered IP spoofing attacks, and the header will, therefore, be ignored. - вот так лучше)
а по русски ? я тут сам сегодня пересел на реверспрокси