From 1bddcb5d44beeb4ba1694d02110a44ab0097e670 Mon Sep 17 00:00:00 2001
From: Ad Schellevis <ad@opnsense.org>
Date: Tue, 24 May 2016 08:32:50 +0200
Subject: [PATCH] (firewall, nat) change default for none to empty,
 https://github.com/opnsense/core/commit/610013dcf37590350b7e41a32eaaccda08aa09ac#commitcomment-17585636

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

diff --git a/src/etc/inc/filter.inc b/src/etc/inc/filter.inc
index f91d0a61d..0981b9bdd 100644
--- a/src/etc/inc/filter.inc
+++ b/src/etc/inc/filter.inc
@@ -1945,7 +1945,7 @@ function filter_nat_rules_generate(&$FilterIflist)
                     $localport = "";
                     break;
             }
-            $address_family = !empty($rule['ipprotocol']) ? $rule['ipprotocol'] : "inet";
+            $address_family = !empty($rule['ipprotocol']) ? $rule['ipprotocol'] : "";
 
             $target = alias_expand($rule['target']);
             if (!$target && !isset($rule['nordr'])) {