NULL_NIC_ID        93 modules/nh/nh.c   if(nh_ptr->nic_id != NULL_NIC_ID) {
NULL_NIC_ID       150 modules/nh/nh.c        nh_ptr->nic_id=NULL_NIC_ID;
NULL_NIC_ID       167 modules/nh/nh.c 	     nh_ptr->nic_id=NULL_NIC_ID;
NULL_NIC_ID        54 modules/nh/nh.h #define MIN_RANGE   NULL_NIC_ID