diff --git a/src/install/sql-dftables.txt b/src/install/sql-dftables.txt
index 269a2ea2..87ef058e 100755
--- a/src/install/sql-dftables.txt
+++ b/src/install/sql-dftables.txt
@@ -5,7 +5,7 @@ CREATE TABLE `#@__addonarticle` (
   `body` mediumtext,
   `redirecturl` varchar(255) NOT NULL default '',
   `templet` varchar(30) NOT NULL default '',
-  `userip` char(15) NOT NULL default '',
+  `userip` char(46) NOT NULL default '',
   PRIMARY KEY  (`aid`),
   KEY `typeid` (`typeid`)
 ) TYPE=MyISAM;
@@ -23,7 +23,7 @@ CREATE TABLE `#@__addonimages` (
   `ddmaxwidth` smallint(6) NOT NULL default '200',
   `pagepicnum` smallint(6) NOT NULL default '12',
   `templet` varchar(30) NOT NULL default '',
-  `userip` char(15) NOT NULL default '',
+  `userip` char(46) NOT NULL default '',
   `redirecturl` varchar(255) NOT NULL default '',
   `body` mediumtext,
   PRIMARY KEY  (`aid`),
@@ -40,7 +40,7 @@ CREATE TABLE `#@__addoninfos` (
   `click` int(10) unsigned NOT NULL default '0',
   `title` varchar(60) NOT NULL default '',
   `litpic` varchar(120) NOT NULL default '',
-  `userip` varchar(15) NOT NULL default ' ',
+  `userip` varchar(46) NOT NULL default ' ',
   `senddate` int(11) NOT NULL default '0',
   `flag` set('c','h','p','f','s','j','a','b') default NULL,
   `lastpost` int(10) unsigned NOT NULL default '0',
@@ -70,7 +70,7 @@ CREATE TABLE `#@__addonshop` (
   `brand` varchar(250) NOT NULL default '',
   `units` varchar(250) NOT NULL default '',
   `templet` varchar(30) NOT NULL,
-  `userip` char(15) NOT NULL,
+  `userip` char(46) NOT NULL,
   `redirecturl` varchar(255) NOT NULL,
   `vocation` char(20) NOT NULL default '0',
   `infotype` char(20) NOT NULL default '0',
@@ -97,7 +97,7 @@ CREATE TABLE `#@__addonsoft` (
   `daccess` smallint(5) NOT NULL default '0',
   `needmoney` smallint(5) NOT NULL default '0',
   `templet` varchar(30) NOT NULL default '',
-  `userip` char(15) NOT NULL default '',
+  `userip` char(46) NOT NULL default '',
   `redirecturl` varchar(255) NOT NULL default '',
   PRIMARY KEY  (`aid`),
   KEY `softMain` (`typeid`)
@@ -109,7 +109,7 @@ CREATE TABLE `#@__addonspec` (
   `typeid` smallint(5) unsigned NOT NULL default '0',
   `note` text,
   `templet` varchar(30) NOT NULL default '',
-  `userip` char(15) NOT NULL default '',
+  `userip` char(46) NOT NULL default '',
   `redirecturl` varchar(255) NOT NULL default '',
   PRIMARY KEY  (`aid`),
   KEY `typeid` (`typeid`)
@@ -126,7 +126,7 @@ CREATE TABLE `#@__admin` (
   `email` char(30) NOT NULL default '',
   `typeid` text,
   `logintime` int(10) unsigned NOT NULL default '0',
-  `loginip` varchar(20) NOT NULL default '',
+  `loginip` varchar(46) NOT NULL default '',
   PRIMARY KEY  (`id`)
 ) TYPE=MyISAM;
 
@@ -384,7 +384,7 @@ CREATE TABLE `#@__feedback` (
   `typeid` smallint(5) unsigned NOT NULL default '0',
   `username` char(20) NOT NULL default '',
   `arctitle` varchar(60) NOT NULL default '',
-  `ip` char(15) NOT NULL default '',
+  `ip` char(46) NOT NULL default '',
   `ischeck` smallint(6) NOT NULL default '0',
   `dtime` int(10) unsigned NOT NULL default '0',
   `replycount` INT(10) UNSIGNED NOT NULL DEFAULT '0',
@@ -472,7 +472,7 @@ CREATE TABLE `#@__log` (
   `filename` char(60) NOT NULL default '',
   `method` char(10) NOT NULL default '',
   `query` char(200) NOT NULL default '',
-  `cip` char(15) NOT NULL default '',
+  `cip` char(46) NOT NULL default '',
   `dtime` int(10) unsigned NOT NULL default '0',
   PRIMARY KEY  (`lid`)
 ) TYPE=MyISAM;
@@ -497,9 +497,9 @@ CREATE TABLE `#@__member` (
   `safequestion` smallint(5) unsigned NOT NULL default '0',
   `safeanswer` char(30) NOT NULL default '',
   `jointime` int(10) unsigned NOT NULL default '0',
-  `joinip` char(16) NOT NULL default '',
+  `joinip` char(46) NOT NULL default '',
   `logintime` int(10) unsigned NOT NULL default '0',
-  `loginip` char(16) NOT NULL default '',
+  `loginip` char(46) NOT NULL default '',
   `checkmail` smallint(6) NOT NULL default '-1',
   PRIMARY KEY  (`mid`),
   KEY `userid` (`userid`,`sex`),
@@ -884,7 +884,7 @@ CREATE TABLE `#@__shops_orders` (
   `price` float(13,2) NOT NULL default '0.00',
   `priceCount` float(13,2) NOT NULL,
   `state` tinyint(1) NOT NULL default '0',
-  `ip` char(15) NOT NULL default '',
+  `ip` char(46) NOT NULL default '',
   `stime` int(10) NOT NULL default '0',
   KEY `stime` (`stime`),
   KEY `userid` (`userid`),
@@ -1089,7 +1089,7 @@ CREATE TABLE `#@__vote_member` (
 DROP TABLE IF EXISTS `#@__dl_log`;
 CREATE TABLE `#@__dl_log` (
   `id` mediumint(10) unsigned NOT NULL auto_increment,
-  `ip` char(16) NOT NULL,
+  `ip` char(46) NOT NULL,
   `lang` char(6) NOT NULL,
   `dtype` varchar(10) NOT NULL,
   `dltime` int(10) unsigned NOT NULL default '0',
diff --git a/src/install/v57sp2_to_v6.txt b/src/install/v57sp2_to_v6.txt
index 5a416916..595281ef 100644
--- a/src/install/v57sp2_to_v6.txt
+++ b/src/install/v57sp2_to_v6.txt
@@ -1,3 +1,17 @@
+-- 6.1.7
+ALTER TABLE `#@__addonarticle` MODIFY COLUMN `userip` char(46) NOT NULL DEFAULT '' AFTER `templet`;
+ALTER TABLE `#@__addonimages` MODIFY COLUMN `userip` char(46) NOT NULL DEFAULT '' AFTER `templet`;
+ALTER TABLE `#@__addoninfos` MODIFY COLUMN `userip` varchar(46) NOT NULL DEFAULT '' AFTER `litpic`;
+ALTER TABLE `#@__addonshop` MODIFY COLUMN `userip` char(46) NOT NULL DEFAULT '' AFTER `templet`;
+ALTER TABLE `#@__addonsoft` MODIFY COLUMN `userip` char(46) NOT NULL DEFAULT '' AFTER `templet`;
+ALTER TABLE `#@__addonspec` MODIFY COLUMN `userip` char(46) NOT NULL DEFAULT '' AFTER `templet`;
+ALTER TABLE `#@__admin` MODIFY COLUMN `loginip` varchar(46) NOT NULL DEFAULT '' AFTER `logintime`;
+ALTER TABLE `#@__feedback` MODIFY COLUMN `ip` char(46) NOT NULL DEFAULT '' AFTER `arctitle`;
+ALTER TABLE `#@__log` MODIFY COLUMN `cip` char(46) NOT NULL DEFAULT '' AFTER `query`;
+ALTER TABLE `#@__member` MODIFY COLUMN `joinip` char(46) NOT NULL DEFAULT '' AFTER `jointime`,MODIFY COLUMN `loginip` char(46) NOT NULL DEFAULT '' AFTER `logintime`;
+ALTER TABLE `#@__shops_orders` MODIFY COLUMN `ip` char(46) CHARACTER NOT NULL DEFAULT '' AFTER `state`;
+ALTER TABLE `#@__dl_log` MODIFY COLUMN `ip` char(46) NOT NULL AFTER `id`;
+
 -- 6.1.0
 ALTER TABLE `#@__arctype`
 	ADD COLUMN `namegk` varchar(255) NULL AFTER `typename`,
diff --git a/src/system/helpers/util.helper.php b/src/system/helpers/util.helper.php
index c3d752e5..de740de2 100755
--- a/src/system/helpers/util.helper.php
+++ b/src/system/helpers/util.helper.php
@@ -68,7 +68,7 @@ if (!function_exists('GetCurUrl')) {
             if (empty($_SERVER["QUERY_STRING"])) {
                 $nowurl = $scriptName;
             } else {
-                $nowurl = $scriptName."?".$_SERVER["QUERY_STRING"];
+                $nowurl = $scriptName . "?" . $_SERVER["QUERY_STRING"];
             }
         }
         return $nowurl;
@@ -88,36 +88,26 @@ if (!function_exists('GetIP')) {
         }
         if (isset($_SERVER)) {
             if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
-                $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
-                /* 取X-Forwarded-For中第x个非unknown的有效IP字符? */
-                foreach ($arr as $ip) {
-                    $ip = trim($ip);
-                    if ($ip != 'unknown') {
-                        $realip = $ip;
-                        break;
-                    }
-                }
-            } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
+                $realip = $_SERVER['HTTP_X_FORWARDED_FOR'];
+            } else if (isset($_SERVER['HTTP_CLIENT_IP'])) {
                 $realip = $_SERVER['HTTP_CLIENT_IP'];
             } else {
-                if (isset($_SERVER['REMOTE_ADDR'])) {
-                    $realip = $_SERVER['REMOTE_ADDR'];
-                } else {
-                    $realip = '0.0.0.0';
-                }
+                $realip = $_SERVER['REMOTE_ADDR'];
             }
         } else {
             if (getenv('HTTP_X_FORWARDED_FOR')) {
                 $realip = getenv('HTTP_X_FORWARDED_FOR');
-            } elseif (getenv('HTTP_CLIENT_IP')) {
+            } else if (getenv('HTTP_CLIENT_IP')) {
                 $realip = getenv('HTTP_CLIENT_IP');
             } else {
                 $realip = getenv('REMOTE_ADDR');
             }
         }
-        preg_match("/[\d\.]{7,15}/", $realip, $onlineip);
-        $realip = !empty($onlineip[0]) ? $onlineip[0] : '0.0.0.0';
-        return $realip;
+        if (filter_var($realip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_IPV6)) {
+            return $realip;
+        } else {
+            return 'unknown';
+        }
     }
 }
 /**
@@ -135,7 +125,7 @@ if (!function_exists('GetEditor')) {
     function GetEditor($fname, $fvalue, $nheight = "350", $etype = "Basic", $gtype = "print", $isfullpage = "FALSE", $bbcode = false)
     {
         if (!function_exists('SpGetEditor')) {
-            require_once(DEDEINC."/inc/inc_fun_funAdmin.php");
+            require_once(DEDEINC . "/inc/inc_fun_funAdmin.php");
         }
         return SpGetEditor($fname, $fvalue, $nheight, $etype, $gtype, $isfullpage, $bbcode);
     }
@@ -168,7 +158,7 @@ if (!function_exists('GetTemplets')) {
 if (!function_exists('GetSysTemplets')) {
     function GetSysTemplets($filename)
     {
-        return GetTemplets($GLOBALS['cfg_basedir'].$GLOBALS['cfg_templets_dir'].'/system/'.$filename);
+        return GetTemplets($GLOBALS['cfg_basedir'] . $GLOBALS['cfg_templets_dir'] . '/system/' . $filename);
     }
 }
 /**
@@ -180,7 +170,7 @@ if (!function_exists('GetNewInfo')) {
     function GetNewInfo()
     {
         if (!function_exists('SpGetNewInfo')) {
-            require_once(DEDEINC."/inc/inc_fun_funAdmin.php");
+            require_once(DEDEINC . "/inc/inc_fun_funAdmin.php");
         }
         return SpGetNewInfo();
     }
@@ -201,7 +191,7 @@ if (!function_exists('dd2char')) {
         $nn = '';
         for ($i = 0; $i < $slen; $i++) {
             if (isset($ddnum[$i + 1])) {
-                $n = $ddnum[$i].$ddnum[$i + 1];
+                $n = $ddnum[$i] . $ddnum[$i + 1];
                 if (($n > 96 && $n < 123) || ($n > 64 && $n < 91)) {
                     $okdd .= chr($n);
                     $i++;
@@ -232,9 +222,9 @@ if (!function_exists('json_encode')) {
         } else if (is_float($value)) {
             $value = floatval($value);
         } else if (defined($value) && $value === NULL) {
-            $value = strval(constant($value));
+            $value = strval(constant((string)$value));
         } else if (is_string($value)) {
-            $value = '"'.addslashes($value).'"';
+            $value = '"' . addslashes($value) . '"';
         }
         return $value;
     }
@@ -258,9 +248,9 @@ if (!function_exists('json_encode')) {
         foreach ($data as $key => $val) {
             if (!is_NULL($val)) {
                 if ($assoc) {
-                    $json .= "\"$key\":".json_encode($val).",";
+                    $json .= "\"$key\":" . json_encode($val) . ",";
                 } else {
-                    $json .= json_encode($val).",";
+                    $json .= json_encode($val) . ",";
                 }
             }
         }
@@ -307,4 +297,4 @@ if (!function_exists('json_decode')) {
         }
         return $result;
     }
-}
\ No newline at end of file
+}