Index: kernel/globals.php
===================================================================
--- kernel/globals.php	(revision 14472)
+++ kernel/globals.php	(working copy)
@@ -576,6 +576,10 @@
 		$network = trim($network);
 		$ip = trim($ip);
 
+		if ( preg_replace('/[\d\.\/-]/', '', $network) != '' ) {
+			$network = gethostbyname($network);
+		}
+
 		if ($network == $ip) {
 			// comparing two ip addresses directly
 			return true;
Index: kernel/utility/debugger.php
===================================================================
--- kernel/utility/debugger.php	(revision 14472)
+++ kernel/utility/debugger.php	(working copy)
@@ -281,6 +281,10 @@
 				$network = trim($network);
 				$ip = trim($ip);
 
+				if ( preg_replace('/[\d\.\/-]/', '', $network) != '' ) {
+					$network = gethostbyname($network);
+				}
+
 				if ($network == $ip) {
 					// comparing two ip addresses directly
 					return true;