}
		if s.Port.XDSReadinessTLS {
			// TODO: using the servers key/cert is not always valid, it may not be allowed to make requests to itself
			req.CertFile = cert
			req.KeyFile = key
			req.CaCertFile = ca
			req.InsecureSkipVerify = true
		}
		_, err = s.f.ForwardEcho(context.Background(), &forwarder.Config{
			XDSTestBootstrap: s.Port.XDSTestBootstrap,
			Request:          req,
		})