diff --git a/pkg/zones/zones.go b/pkg/zones/zones.go
index a8fb2ea..ae9eb33 100644
--- a/pkg/zones/zones.go
+++ b/pkg/zones/zones.go
@@ -125,6 +125,19 @@ func (z *Zone) SetGateway(gatewayID int, enabled bool) error {
 	}
 }
 
+// GatewayIDs returns the list of IDs of machines that act as ring0 gateways
+func (z *Zone) GatewayIDs() ([]int, int) {
+	var out []int
+	z.ForEachMachine(func(p *Machine) bool {
+		if p.IsGateway() {
+			out = append(out, p.ID)
+		}
+		return false
+	})
+
+	return out, len(out)
+}
+
 // Zones represents all zones in a cluster
 type Zones struct {
 	dir      fs.FS