public void Addwirelessclient(int num, string macaddr, string first, string last, string iprange, string iptype)
        {
            wirelessclient obj = new wirelessclient();

            obj.number     = num;
            obj.clientmac  = macaddr;
            obj.cfirsttime = first;
            obj.clasttime  = last;
            obj.ciprange   = iprange;
            obj.ciptype    = iptype;

            cli.Add(obj);
        }
 public void Addwirelessclient(wirelessclient obj)
 {
     cli.Add(obj);
 }