diff --git a/go-controller/pkg/ovn/gateway.go b/go-controller/pkg/ovn/gateway.go
index 5a0fb0c506..85b7ba23a3 100644
--- a/go-controller/pkg/ovn/gateway.go
+++ b/go-controller/pkg/ovn/gateway.go
@@ -388,10 +388,11 @@ func (gw *GatewayManager) GatewayInit(
 		}
 		if gw.netInfo.IsPrimaryNetwork() && gw.netInfo.TopologyType() == types.Layer2Topology {
 			logicalRouterPort.Ipv6RaConfigs = map[string]string{
-				"address_mode":  "dhcpv6_stateful",
-				"send_periodic": "true",
-				"max_interval":  "900", // 15 minutes
-				"min_interval":  "300", // 5 minutes
+				"address_mode":      "dhcpv6_stateful",
+				"send_periodic":     "true",
+				"max_interval":      "900", // 15 minutes
+				"min_interval":      "300", // 5 minutes
+				"router_preference": "LOW",
 			}
 			if gw.netInfo.MTU() > 0 {
 				logicalRouterPort.Ipv6RaConfigs["mtu"] = fmt.Sprintf("%d", gw.netInfo.MTU())
diff --git a/go-controller/pkg/ovn/secondary_layer2_network_controller_test.go b/go-controller/pkg/ovn/secondary_layer2_network_controller_test.go
index c91485c0d8..0d18a1bb72 100644
--- a/go-controller/pkg/ovn/secondary_layer2_network_controller_test.go
+++ b/go-controller/pkg/ovn/secondary_layer2_network_controller_test.go
@@ -480,11 +480,12 @@ func expectedGWToNetworkSwitchRouterPort(name string, netInfo util.NetInfo, netw
 	options := map[string]string{"gateway_mtu": fmt.Sprintf("%d", 1400)}
 	lrp := expectedLogicalRouterPort(name, netInfo, options, networks...)
 	lrp.Ipv6RaConfigs = map[string]string{
-		"address_mode":  "dhcpv6_stateful",
-		"mtu":           "1400",
-		"send_periodic": "true",
-		"max_interval":  "900",
-		"min_interval":  "300",
+		"address_mode":      "dhcpv6_stateful",
+		"mtu":               "1400",
+		"send_periodic":     "true",
+		"max_interval":      "900",
+		"min_interval":      "300",
+		"router_preference": "LOW",
 	}
 	return lrp
 }