From ec2cea33cd107da78f33cf49ed2698df24921b1b Mon Sep 17 00:00:00 2001
From: Fabian Franz <franz.fabian.94@gmail.com>
Date: Sat, 25 May 2019 10:33:02 +0200
Subject: [PATCH] core: fix flipped bit for IPv6

---
 src/etc/inc/filter.lib.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/etc/inc/filter.lib.inc b/src/etc/inc/filter.lib.inc
index b65e2e67626..6bfc647bd87 100644
--- a/src/etc/inc/filter.lib.inc
+++ b/src/etc/inc/filter.lib.inc
@@ -207,7 +207,7 @@ function filter_core_rules_system($fw, $defaults)
     // block All IPv6 except loopback traffic
     $fw->registerFilterRule(
         1,
-        array('interface' => 'loopback', 'ipprotocol'=>'inet6', 'disabled' => isset($config['system']['ipv6allow']),
+        array('interface' => 'loopback', 'ipprotocol'=>'inet6', 'disabled' => !isset($config['system']['ipv6allow']),
           'descr' => 'Pass all loopback IPv6', '#ref' => 'system_advanced_firewall.php#ipv6allow'),
         $defaults['pass']
     );