ipvs.go
func (ipvs *IpvsClient) AddFWMDest(fwmark uint32, rip string, vaf uint16,
	port uint16, weight int32) error {
	return ipvs.AddFWMDestFWD(fwmark, rip, vaf, port, weight, IPVS_TUNNELING)
}
func (ipvs *IpvsClient) AddFWMDest(fwmark uint32, rip string, vaf uint16,
	port uint16, weight int32) error {
	return ipvs.AddFWMDestFWD(fwmark, rip, vaf, port, weight, IPVS_TUNNELING)
}
/*
func (ipvs *IpvsClient) modifyFWMDest(method string, fwmark uint32,
	rip string, vaf uint16, port uint16, amap map[string]SerDes) {

*/