diff --git a/inc/config.php b/inc/config.php
index edabb330..877ff762 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -300,6 +300,8 @@
 	$config['url_regex']	= '/' .	'(https?|ftp):\/\/' .	'(([\w\-]+\.)+[a-zA-Z]{2,6}|\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' .	'(\/([\w\-~\.#\/?=&;:+%]+)?)?' . '/';
 	// INSANE regular expression for IPv6 addresses
 	$config['ipv6_regex']	= '((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?';
+	// Make IPv4 addresses look like IPv4 addresses ("::ffff:8.8.8.8" becomes "8.8.8.8")
+	$config['ipv6_ipv4']	= true;
 	
 	// Allowed file extensions
 	$config['allowed_ext'] = Array('jpg', 'jpeg', 'bmp', 'gif', 'png');
diff --git a/inc/functions.php b/inc/functions.php
index 14733ec8..b7b4ce90 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -2,7 +2,7 @@
 	loadConfig();
 	
 	function loadConfig() {
-		global $board, $config;
+		global $board, $config, $__ip;
 		
 		require 'config.php';
 		if (file_exists('inc/instance-config.php')) {
@@ -54,6 +54,16 @@
 			error_reporting(E_ALL);
 			ini_set('display_errors', 1);
 		}
+		
+		if($config['ipv6_ipv4']) {
+			// Keep the original address to properly comply with other board configuartions
+			if(!isset($__ip))
+				$__ip = $_SERVER['REMOTE_ADDR'];
+			
+			// ::ffff:0.0.0.0
+			if(preg_match('/^\:\:ffff\:(\d+\.\d+\.\d+\.\d+)$/', $__ip, $m))
+				$_SERVER['REMOTE_ADDR'] = $m[1];
+		}
 	}
 	
 	function sprintf3($str, $vars, $delim = '%') {