Vendoring libnetwork @ab8f7e6

Signed-off-by: Alessandro Boch <aboch@docker.com>

vendor.conf

@@ -24,7 +24,7 @@ github.com/RackSec/srslog 456df3a81436d29ba874f3590eeeee25d666f8a5
 github.com/imdario/mergo 0.2.1
 
 #get libnetwork packages
-github.com/docker/libnetwork f3c4ca8ce5c128e071bab198c4ed9fd0d08384eb
+github.com/docker/libnetwork ab8f7e61743aa7e54c5d0dad0551543adadc33cf
 github.com/docker/go-events 18b43f1bc85d9cdd42c05a6cd2d444c7a200a894
 github.com/armon/go-radix e39d623f12e8e41c7b5529e9a9dd67a1e2261f80
 github.com/armon/go-metrics eb0af217e5e9747e41dd5303755356b62d28e3ec

vendor/github.com/docker/libnetwork/iptables/firewalld.go

@@ -151,7 +151,6 @@ func checkRunning() bool {
 
 	if connection != nil {
 		err = connection.sysobj.Call(dbusInterface+".getDefaultZone", 0).Store(&zone)
-		logrus.Infof("Firewalld running: %t", err == nil)
 		return err == nil
 	}
 	return false

vendor/github.com/docker/libnetwork/osl/namespace_linux.go

@@ -222,9 +222,11 @@ func NewSandbox(key string, osCreate, isRestore bool) (Sandbox, error) {
 	}
 
 	// As starting point, disable IPv6 on all interfaces
-	err = setIPv6(n.path, "all", false)
-	if err != nil {
-		logrus.Warnf("Failed to disable IPv6 on all interfaces on network namespace %q: %v", n.path, err)
+	if !n.isDefault {
+		err = setIPv6(n.path, "all", false)
+		if err != nil {
+			logrus.Warnf("Failed to disable IPv6 on all interfaces on network namespace %q: %v", n.path, err)
+		}
 	}
 
 	if err = n.loopbackUp(); err != nil {