@@ -13,6 +13,7 @@ import (

 	"github.com/docker/docker/daemon"

 	"github.com/docker/docker/daemon/network"

 	"github.com/docker/docker/pkg/parsers/filters"

+	"github.com/docker/docker/runconfig"

 	"github.com/docker/libnetwork"

 )

@@ -85,6 +86,11 @@ func (n *networkRouter) postNetworkCreate(ctx context.Context, w http.ResponseWr

 		return err

 	}

+	if runconfig.IsPreDefinedNetwork(create.Name) {

+		return httputils.WriteJSON(w, http.StatusForbidden,

+			fmt.Sprintf("%s is a pre-defined network and cannot be created", create.Name))

+	}

+

 	nw, err := n.daemon.GetNetwork(create.Name, daemon.NetworkByName)

 	if _, ok := err.(libnetwork.ErrNoSuchNetwork); err != nil && !ok {

 		return err

@@ -161,6 +167,11 @@ func (n *networkRouter) deleteNetwork(ctx context.Context, w http.ResponseWriter

 		return err

 	}

+	if runconfig.IsPreDefinedNetwork(nw.Name()) {

+		return httputils.WriteJSON(w, http.StatusForbidden,

+			fmt.Sprintf("%s is a pre-defined network and cannot be removed", nw.Name()))

+	}

+

 	return nw.Delete()

 }

@@ -193,6 +193,23 @@ func (s *DockerSuite) TestApiNetworkIpamMultipleBridgeNetworks(c *check.C) {

 	}

 }

+func (s *DockerSuite) TestApiCreateDeletePredefinedNetworks(c *check.C) {

+	createDeletePredefinedNetwork(c, "bridge")

+	createDeletePredefinedNetwork(c, "none")

+	createDeletePredefinedNetwork(c, "host")

+}

+

+func createDeletePredefinedNetwork(c *check.C, name string) {

+	// Create pre-defined network

+	config := types.NetworkCreate{

+		Name:           name,

+		CheckDuplicate: true,

+	}

+	shouldSucceed := false

+	createNetwork(c, config, shouldSucceed)

+	deleteNetwork(c, name, shouldSucceed)

+}

+

 func isNetworkAvailable(c *check.C, name string) bool {

 	status, body, err := sockRequest("GET", "/networks", nil)

 	c.Assert(status, checker.Equals, http.StatusOK)

@@ -284,7 +301,6 @@ func deleteNetwork(c *check.C, id string, shouldSucceed bool) {

 	status, _, err := sockRequest("DELETE", "/networks/"+id, nil)

 	if !shouldSucceed {

 		c.Assert(status, checker.Not(checker.Equals), http.StatusOK)

-		c.Assert(err, checker.NotNil)

 		return

 	}

 	c.Assert(status, checker.Equals, http.StatusOK)

@@ -66,6 +66,12 @@ func (n NetworkMode) IsUserDefined() bool {

 	return !n.IsDefault() && !n.IsBridge() && !n.IsHost() && !n.IsNone() && !n.IsContainer()

 }

+// IsPreDefinedNetwork indicates if a network is predefined by the daemon

+func IsPreDefinedNetwork(network string) bool {

+	n := NetworkMode(network)

+	return n.IsBridge() || n.IsHost() || n.IsNone()

+}

+

 //UserDefined indicates user-created network

 func (n NetworkMode) UserDefined() string {

 	if n.IsUserDefined() {

@@ -27,3 +27,8 @@ func MergeConfigs(config *Config, hostConfig *HostConfig) *ContainerConfigWrappe

 		hostConfig,

 	}

 }

+

+// IsPreDefinedNetwork indicates if a network is predefined by the daemon

+func IsPreDefinedNetwork(network string) bool {

+	return false

+}