diff --git a/internal/liqonet/tunnel-operator/tunnel-operator.go b/internal/liqonet/tunnel-operator/tunnel-operator.go
index 5ed64e0d8d..fc544ab821 100644
--- a/internal/liqonet/tunnel-operator/tunnel-operator.go
+++ b/internal/liqonet/tunnel-operator/tunnel-operator.go
@@ -50,6 +50,10 @@ var (
 	result = ctrl.Result{}
 )
 
+// Constant used for add/deletion of policy routing rules
+// to specify any network.
+const anyNetwork = ""
+
 // TunnelController type of the tunnel controller.
 type TunnelController struct {
 	client.Client
@@ -189,7 +193,7 @@ func (tc *TunnelController) Reconcile(ctx context.Context, req ctrl.Request) (ct
 		return nil
 	}
 	var configHNetns = func(netNamespace ns.NetNS) error {
-		added, err := liqorouting.AddPolicyRoutingRule(remotePodCIDR, "", liqoconst.RoutingTableID)
+		added, err := liqorouting.AddPolicyRoutingRule(remotePodCIDR, anyNetwork, liqoconst.RoutingTableID)
 		if err != nil {
 			klog.Errorf("%s -> unable to configure policy routing rule for subnet {%s}: %s", clusterID, remotePodCIDR, err)
 			return err
@@ -197,7 +201,7 @@ func (tc *TunnelController) Reconcile(ctx context.Context, req ctrl.Request) (ct
 		if added {
 			klog.Infof("%s -> policy routing rule for subnet {%s} correctly configured", clusterID, remotePodCIDR)
 		}
-		added, err = liqorouting.AddPolicyRoutingRule(remoteExternalCIDR, "", liqoconst.RoutingTableID)
+		added, err = liqorouting.AddPolicyRoutingRule(remoteExternalCIDR, anyNetwork, liqoconst.RoutingTableID)
 		if err != nil {
 			klog.Errorf("%s -> unable to configure policy routing rule for subnet {%s}: %s", clusterID, remoteExternalCIDR, err)
 			return err
@@ -208,7 +212,7 @@ func (tc *TunnelController) Reconcile(ctx context.Context, req ctrl.Request) (ct
 		return nil
 	}
 	var unconfigHNetns = func(netNamespace ns.NetNS) error {
-		deleted, err := liqorouting.DelPolicyRoutingRule(remotePodCIDR, "", liqoconst.RoutingTableID)
+		deleted, err := liqorouting.DelPolicyRoutingRule(remotePodCIDR, anyNetwork, liqoconst.RoutingTableID)
 		if err != nil {
 			klog.Errorf("%s -> unable to remove policy routing rule for subnet {%s}: %s", clusterID, remotePodCIDR, err)
 			return err
@@ -216,7 +220,7 @@ func (tc *TunnelController) Reconcile(ctx context.Context, req ctrl.Request) (ct
 		if deleted {
 			klog.Infof("%s -> policy routing rule for subnet {%s} correctly removed", clusterID, remotePodCIDR)
 		}
-		deleted, err = liqorouting.DelPolicyRoutingRule(remoteExternalCIDR, "", liqoconst.RoutingTableID)
+		deleted, err = liqorouting.DelPolicyRoutingRule(remoteExternalCIDR, anyNetwork, liqoconst.RoutingTableID)
 		if err != nil {
 			klog.Errorf("%s -> unable to remove policy routing rule for subnet {%s}: %s", clusterID, remoteExternalCIDR, err)
 			return err