diff --git a/comments.php b/comments.php
index c0a3417..e537a7e 100644
--- a/comments.php
+++ b/comments.php
@@ -87,8 +87,10 @@
 
 			}
 			$arr['content'] = $_POST['content'];
-			
-			$arr['ip-address'] = utils_ipget();
+
+			if ($v = utils_ipget()) {	
+				$arr['ip-address'] = $v;
+			}
 			
 			if (apply_filters('comment_validate', true, $arr))
 				return $arr;
diff --git a/fp-includes/core/core.utils.php b/fp-includes/core/core.utils.php
index 012f7af..6381639 100644
--- a/fp-includes/core/core.utils.php
+++ b/fp-includes/core/core.utils.php
@@ -309,6 +309,9 @@ if (!function_exists('fnmatch')) {
 	
 	// get client IP
 	function utils_ipget() {
+		
+		$ip = '';
+
 		if ( !empty ( $_SERVER[ 'HTTP_CLIENT_IP' ] ) ) {
 			$ip = $_SERVER[ 'HTTP_CLIENT_IP' ];
 		}
@@ -327,10 +330,14 @@ if (!function_exists('fnmatch')) {
 		elseif ( getenv( "REMOTE_ADDR") ) {
 			$ip = getenv( "REMOTE_ADDR" );
 		}
-		else { 
-			$ip = "UNKNOWN";
+
+		if (preg_match('/[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/', $ip)) {
+			return $ip;
+		} else {
+			return '';
 		}
-		return( $ip );
+
+
 	}
 
 	function utils_nocache_headers() {