func isHostIP(ipAddress string) bool {
	host, _, err := net.SplitHostPort(ipAddress)
	if err != nil {
		host = ipAddress
	}
	// Strip off IPv6 zone information.
	if i := strings.Index(host, "%"); i > -1 {
		host = host[:i]
	}
	return net.ParseIP(host) != nil
}

// extractHostPort - extracts host/port from many address formats

	go s.ztunnelServer.Run(ctx)
}

func (s *NetServer) Stop() {
	log.Debug("removing host iptables rules")
	s.iptablesConfigurator.DeleteHostRules()

	log.Debug("destroying host ipset")
	s.hostsideProbeIPSet.Flush()
	if err := s.hostsideProbeIPSet.DestroySet(); err != nil {
		log.Warnf("could not destroy host ipset on shutdown")
	}
	log.Debug("stopping ztunnel server")
	s.ztunnelServer.Close()
}