}

func isOverlay(hnsNetworkInfo *hnsNetworkInfo) bool {
	return strings.EqualFold(hnsNetworkInfo.networkType, NETWORK_TYPE_OVERLAY)
}

// StackCompatTester tests whether the required kernel and network are dualstack capable
type StackCompatTester interface {
	DualStackCompatible(networkName string) bool
}

type DualStackCompatTester struct{}

func (t DualStackCompatTester) DualStackCompatible(networkName string) bool {

				log.Warnf("buildSidecarOutboundListeners: skipping sidecar port %d for node %s as it conflicts with static listener",
					egressListener.IstioListener.Port.Number, node.ID)
				continue
			}

			// TODO: dualstack wildcards

			for _, service := range services {
				listenerOpts := outboundListenerOpts{
					push:    push,
					proxy:   node,
					bind:    bind,
					port:    listenPort,
					service: service,