diff --git a/internal/pkg/node/constructors.go b/internal/pkg/node/constructors.go
index d3d3bc1c..02882e26 100644
--- a/internal/pkg/node/constructors.go
+++ b/internal/pkg/node/constructors.go
@@ -206,7 +206,7 @@ func (config *NodeYaml) FindAllNodes() ([]NodeInfo, error) {
 			n.SetAltFrom(config.NodeProfiles[profileName], profileName)
 		}
 		// set default/primary network is just one network exist
-		if len(n.NetDevs) >= 1 {
+		if len(n.NetDevs) >= 1 && !n.PrimaryNetDev.Defined() {
 			tmpNets := make([]string, 0, len(n.NetDevs))
 			for key := range node.NetDevs {
 				tmpNets = append(tmpNets, key)
diff --git a/internal/pkg/node/constuctors_test.go b/internal/pkg/node/constuctors_test.go
new file mode 100644
index 00000000..2c198d73
--- /dev/null
+++ b/internal/pkg/node/constuctors_test.go
@@ -0,0 +1,107 @@
+package node
+
+import (
+	"testing"
+
+	"gopkg.in/yaml.v2"
+)
+
+func newConstructorPrimaryNetworkTest() NodeYaml {
+	var data = `
+nodeprofiles:
+  default:
+    comment: This profile is automatically included for each node
+nodes:
+  test_node1:
+    network devices:
+      net0:
+        device: eth0
+  test_node2:
+    primary network: net1
+    network devices:
+      net0:
+        device: eth0
+      net1:
+        device: eth1
+  test_node3:
+    network devices:
+      net0:
+        device: eth0
+      net1:
+        device: eth1
+  test_node4:
+    primary network: net3
+    network devices:
+      net0:
+        device: eth0
+      net1:
+        device: eth1
+  `
+	var ret NodeYaml
+	_ = yaml.Unmarshal([]byte(data), &ret)
+	return ret
+}
+func Test_Primary_Network(t *testing.T) {
+	c := newConstructorPrimaryNetworkTest()
+	nodes, _ := c.FindAllNodes()
+	test_node1 := NewInfo()
+	test_node2 := NewInfo()
+	test_node3 := NewInfo()
+	test_node4 := NewInfo()
+
+	for _, n := range nodes {
+		if n.Id.Get() == "test_node1" {
+			test_node1 = n
+		}
+		if n.Id.Get() == "test_node2" {
+			test_node2 = n
+		}
+		if n.Id.Get() == "test_node3" {
+			test_node3 = n
+		}
+		if n.Id.Get() == "test_node4" {
+			test_node4 = n
+		}
+	}
+	t.Run("Primary network with one network, nothing set", func(t *testing.T) {
+		if test_node1.PrimaryNetDev.Get() != "net0" {
+			t.Errorf("primary network isn't net0 but: %s", test_node1.PrimaryNetDev.Get())
+		}
+		if !test_node1.NetDevs["net0"].Primary.GetB() {
+			t.Errorf("primary flag isn't set for net0")
+		}
+	})
+	t.Run("Primary network with two networks, primary is net1", func(t *testing.T) {
+		if test_node2.PrimaryNetDev.Get() != "net1" {
+			t.Errorf("primary network isn't net1 but: %s", test_node2.PrimaryNetDev.Get())
+		}
+		if test_node2.NetDevs["net0"].Primary.GetB() {
+			t.Errorf("primary flag is set for net0")
+		}
+		if !test_node2.NetDevs["net1"].Primary.GetB() {
+			t.Errorf("primary flag isn't set for net1")
+		}
+	})
+	t.Run("Primary network with two networks, primary isn't set", func(t *testing.T) {
+		if test_node3.PrimaryNetDev.Get() != "net0" {
+			t.Errorf("primary network isn't net0 but: %s", test_node3.PrimaryNetDev.Get())
+		}
+		if !test_node3.NetDevs["net0"].Primary.GetB() {
+			t.Errorf("primary flag is set for net0")
+		}
+		if test_node3.NetDevs["net1"].Primary.GetB() {
+			t.Errorf("primary flag isn't set for net1")
+		}
+	})
+	t.Run("Primary network with two networks, primary available", func(t *testing.T) {
+		if test_node4.PrimaryNetDev.Get() != "net3" {
+			t.Errorf("primary network isn't net3 but: %s", test_node3.PrimaryNetDev.Get())
+		}
+		if test_node4.NetDevs["net0"].Primary.GetB() {
+			t.Errorf("primary flag is set for net0")
+		}
+		if test_node4.NetDevs["net1"].Primary.GetB() {
+			t.Errorf("primary flag isn't set for net1")
+		}
+	})
+}
diff --git a/internal/pkg/node/datastructure.go b/internal/pkg/node/datastructure.go
index b342f8f9..5a979b09 100644
--- a/internal/pkg/node/datastructure.go
+++ b/internal/pkg/node/datastructure.go
@@ -83,7 +83,7 @@ type NetDevs struct {
 	Netmask string            `yaml:"netmask,omitempty" lopt:"netmask" sopt:"M" comment:"Set the networks netmask" type:"IP"`
 	Gateway string            `yaml:"gateway,omitempty" lopt:"gateway" sopt:"G" comment:"Set the node's network device gateway" type:"IP"`
 	MTU     string            `yaml:"mtu,omitempty" lopt:"mtu" comment:"Set the mtu" type:"uint"`
-	Primary string            `yaml:"primary,omitempty" lopt:"primary" comment:"Enable/disable network device as primary (true/false)" type:"bool"`
+	Primary string            `yaml:"primary,omitempty" type:"bool"`
 	Default string            `yaml:"default,omitempty"` /* backward compatibility */
 	Tags    map[string]string `yaml:"tags,omitempty" lopt:"nettagadd" comment:"network tags"`
 	TagsDel []string          `yaml:"tagsdel,omitempty" lopt:"nettagdel" comment:"delete network tags"` // should not go to disk only to wire