diff --git a/dist/rootfs/var/openlan/script/switch.sh b/dist/rootfs/var/openlan/script/switch.sh
index b82baa3..d5d9721 100755
--- a/dist/rootfs/var/openlan/script/switch.sh
+++ b/dist/rootfs/var/openlan/script/switch.sh
@@ -14,7 +14,7 @@ sysctl -p /etc/sysctl.d/90-openlan.conf
 ## END
 
 ## START: prepare external dir.
-for dir in network acl findhop link output route qos dnat; do
+for dir in network acl findhop output route qos dnat; do
   [ -e "$cs_dir/$dir" ] || mkdir -p "$cs_dir/$dir"
 done
 ## END
diff --git a/pkg/api/output.go b/pkg/api/output.go
index 0b4494e..3aacbc8 100755
--- a/pkg/api/output.go
+++ b/pkg/api/output.go
@@ -5,7 +5,6 @@ import (
 
 	"github.com/gorilla/mux"
 	"github.com/luscis/openlan/pkg/cache"
-	"github.com/luscis/openlan/pkg/libol"
 	"github.com/luscis/openlan/pkg/models"
 	"github.com/luscis/openlan/pkg/schema"
 )
@@ -25,7 +24,6 @@ func (h Output) Get(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	name := vars["id"]
 
-	libol.Debug("Output.Get %s")
 	outputs := make([]schema.Output, 0, 1024)
 	for l := range cache.Output.List(name) {
 		if l == nil {
diff --git a/pkg/cache/output.go b/pkg/cache/output.go
old mode 100755
new mode 100644
diff --git a/pkg/config/cert.go b/pkg/config/cert.go
index fa2afc4..1b35092 100755
--- a/pkg/config/cert.go
+++ b/pkg/config/cert.go
@@ -24,6 +24,10 @@ func (c *Crypt) Correct() {
 	}
 }
 
+func (c *Crypt) Short() string {
+	return c.Algo + ":" + c.Secret
+}
+
 type Cert struct {
 	Dir      string `json:"directory" yaml:"directory"`
 	CrtFile  string `json:"cert" yaml:"cert"`
diff --git a/pkg/config/network.go b/pkg/config/network.go
index 779170d..377d43e 100755
--- a/pkg/config/network.go
+++ b/pkg/config/network.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"net"
 	"path/filepath"
+	"strings"
 
 	"github.com/luscis/openlan/pkg/libol"
 )
@@ -131,7 +132,6 @@ func (n *Network) Correct(sw *Switch) {
 	}
 
 	CorrectRoutes(n.Routes, ipAddr)
-
 	if n.OpenVPN != nil {
 		n.OpenVPN.Correct(sw.AddrPool, n.Name)
 	}
@@ -140,6 +140,9 @@ func (n *Network) Correct(sw *Switch) {
 		value.Correct()
 		n.FindHop[key] = value
 	}
+	for _, value := range n.Outputs {
+		value.Correct()
+	}
 }
 
 func (n *Network) Dir(module string) string {
@@ -159,7 +162,6 @@ func (n *Network) IsYaml() bool {
 }
 
 func (n *Network) Load() {
-	n.LoadLink()
 	n.LoadRoute()
 	n.LoadOutput()
 	n.LoadFindHop()
@@ -180,11 +182,32 @@ func (n *Network) LoadRoute() {
 	}
 }
 
+func UserShort(value string) string {
+	return strings.SplitN(value, "@", 2)[0]
+}
+
 func (n *Network) LoadOutput() {
 	file := n.Dir("output")
 	if err := libol.UnmarshalLoad(&n.Outputs, file); err != nil {
 		libol.Error("Network.LoadOutput... %n", err)
 	}
+
+	n.LoadLink()
+	// Clone link to outputs.
+	for _, link := range n.Links {
+		link.Correct()
+		username := UserShort(link.Username)
+		value := &Output{
+			Protocol: link.Protocol,
+			Remote:   link.Connection,
+			Secret:   username + ":" + link.Password,
+			Crypt:    link.Crypt.Short(),
+		}
+		if _, index := n.FindOutput(value); index == -1 {
+			n.Outputs = append(n.Outputs, value)
+		}
+	}
+	n.Links = nil
 }
 
 func (n *Network) LoadFindHop() {
@@ -203,19 +226,14 @@ func (n *Network) LoadDnat() {
 
 func (n *Network) Save() {
 	obj := *n
-
 	obj.Routes = nil
-	obj.Links = nil
 	obj.Outputs = nil
 	obj.Dnat = nil
-	obj.FindHop = nil
-
+	obj.FindHop = nil // Clear sub dirs.
 	if err := libol.MarshalSave(&obj, obj.File, true); err != nil {
 		libol.Error("Network.Save %s %s", obj.Name, err)
 	}
-
 	n.SaveRoute()
-	n.SaveLink()
 	n.SaveOutput()
 	n.SaveFindHop()
 	n.SaveDnat()
@@ -228,13 +246,6 @@ func (n *Network) SaveRoute() {
 	}
 }
 
-func (n *Network) SaveLink() {
-	file := n.Dir("link")
-	if err := libol.MarshalSave(n.Links, file, true); err != nil {
-		libol.Error("Network.SaveLink %s %s", n.Name, err)
-	}
-}
-
 func (n *Network) SaveOutput() {
 	file := n.Dir("output")
 	if err := libol.MarshalSave(n.Outputs, file, true); err != nil {
@@ -318,6 +329,12 @@ func (n *Network) DelOutput(value *Output) (*Output, bool) {
 	return obj, index != -1
 }
 
+func (n *Network) ListOutput(call func(value Output)) {
+	for _, obj := range n.Outputs {
+		call(*obj)
+	}
+}
+
 func (n *Network) FindFindHop(value *FindHop) *FindHop {
 	if n.FindHop == nil {
 		n.FindHop = make(map[string]*FindHop)
diff --git a/pkg/config/output.go b/pkg/config/output.go
index 7d9a4ea..b8e5ea2 100755
--- a/pkg/config/output.go
+++ b/pkg/config/output.go
@@ -22,7 +22,7 @@ func (o *Output) Id() string {
 	return fmt.Sprintf("%s-%s-%d", o.Protocol, o.Remote, o.Segment)
 }
 
-func (o *Output) GenName() {
+func (o *Output) Correct() {
 	switch o.Protocol {
 	case "gre":
 		o.Link = fmt.Sprintf("%s%d", "gei", o.Segment)
diff --git a/pkg/switch/network_linux.go b/pkg/switch/network_linux.go
index ce0d42d..0fc9711 100755
--- a/pkg/switch/network_linux.go
+++ b/pkg/switch/network_linux.go
@@ -601,7 +601,6 @@ func (w *WorkerImpl) Start(v api.SwitchApi) {
 	if cfg.Bridge != nil {
 		w.toACL(cfg.Bridge.Name)
 		for _, output := range cfg.Outputs {
-			output.GenName()
 			w.addOutput(cfg.Bridge.Name, output)
 		}
 	}
@@ -1248,7 +1247,7 @@ func (w *WorkerImpl) AddOutput(data schema.Output) {
 		w.out.Info("WorkerImple.AddOutput %s already existed", output.Id())
 		return
 	}
-	output.GenName()
+	output.Correct()
 	w.addOutput(w.cfg.Bridge.Name, output)
 }