diff --git a/cns/hnsclient/hnsclient_windows.go b/cns/hnsclient/hnsclient_windows.go
index 3a78ebe305..249807efda 100644
--- a/cns/hnsclient/hnsclient_windows.go
+++ b/cns/hnsclient/hnsclient_windows.go
@@ -10,6 +10,21 @@ import (
 	"github.com/Microsoft/hcsshim"
 )
 
+const (
+	// Name of the external hns network
+	ExtHnsNetworkName = "ext"
+
+	// Address prefix for external hns network
+	ExtHnsNetworkAddressPrefix = "192.168.255.0/30"
+
+	// Gateway address for external hns network
+	ExtHnsNetworkGwAddress = "192.168.255.1"
+
+	// HNS network types
+	hnsL2Bridge = "l2bridge"
+	hnsL2Tunnel = "l2tunnel"
+)
+
 // CreateHnsNetwork creates the HNS network with the provided configuration
 func CreateHnsNetwork(nwConfig cns.CreateHnsNetworkRequest) error {
 	log.Printf("[Azure CNS] CreateHnsNetwork")
diff --git a/platform/os_windows.go b/platform/os_windows.go
index b9fc9f7a11..e8bc2c6f4a 100644
--- a/platform/os_windows.go
+++ b/platform/os_windows.go
@@ -50,19 +50,6 @@ const (
 
 	// Command to restart HNS service
 	RestartHnsServiceCommand = "Restart-Service -Name hns"
-
-	// Name of the external hns network
-	ExtHnsNetworkName = "ext"
-
-	// Address prefix for external hns network
-	ExtHnsNetworkAddressPrefix = "192.168.255.0/30"
-
-	// Gateway address for external hns network
-	ExtHnsNetworkGwAddress = "192.168.255.1"
-
-	// HNS network types
-	hnsL2Bridge = "l2bridge"
-	hnsL2Tunnel = "l2tunnel"
 )
 
 // Flag to check if sdnRemoteArpMacAddress registry key is set