#define OPTION_CLIENTID 1
#define OPTION_SERVERID 2
#define OPTION_IA 3
//According to rfc 3315, the number is changed...
//#define OPTION_IAADDR	4
//#define OPTION_STATUS_CODE 5
//#define OPTION_PREFERENCE 6
#define OPTION_IAADDR	5
#define OPTION_ELAPSED   8
#define OPTION_PREFERENCE 7
#define OPTION_STATUS_CODE 13