code: func ifaceGateway(dfNet string) (*staticRoute, error) {
  	nh, dst, err := net.ParseCIDR(dfNet)
  	if err != nil {
  		return nil, fmt.Errorf("unable to parse default route %v", err)
  	}
  	defaultRoute := &staticRoute{
  		Destination: dst,
  		RouteType:   types.CONNECTED,
  		NextHop:     nh,
  	}
  
  	return defaultRoute, nil
  }
docs: // ifaceGateway returns a static route for either v4/v6 to be set to the container eth0