add_filter( 'gform_ip_address', 'filter_gform_ip_address' );
function filter_gform_ip_address( $ip ) {
// Return the IP address set by the proxy.
// E.g. $_SERVER['HTTP_X_FORWARDED_FOR'] or $_SERVER['HTTP_CLIENT_IP']
return $_SERVER['HTTP_X_FORWARDED_FOR'];
}
//https://docs.gravityforms.com/gform_ip_address/