From 0b9387f09c3ea601da8256b1dbe285b411424a5d Mon Sep 17 00:00:00 2001
From: Tom Eastep <teastep@shorewall.net>
Date: Tue, 25 Oct 2016 14:42:03 -0700
Subject: [PATCH] Force address Detection on optional interfaces

Signed-off-by: Tom Eastep <teastep@shorewall.net>
---
 Shorewall/Perl/Shorewall/Compiler.pm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Shorewall/Perl/Shorewall/Compiler.pm b/Shorewall/Perl/Shorewall/Compiler.pm
index e11c52bf2..e2fbb222f 100644
--- a/Shorewall/Perl/Shorewall/Compiler.pm
+++ b/Shorewall/Perl/Shorewall/Compiler.pm
@@ -282,8 +282,13 @@ sub generate_script_2() {
 	  'detect_configuration()',
 	  '{' );
 
-    my $global_variables    = have_global_variables;
     my $optional_interfaces = find_interfaces_by_option( 'optional' );
+    #
+    # Force address detection for all optional interfaces
+    #
+    get_interface_address( $_ ) for @$optional_interfaces;
+
+    my $global_variables    = have_global_variables;
 
     push_indent;