find_lboard_class
extern lboard_t *find_lboard_class(lboard_t *start, unsigned char brd_class);
brd = find_lboard_class((lboard_t *)KL_CONFIG_INFO(nasid),
} while ((brd = find_lboard_class(KLCF_NEXT(brd), KLTYPE_ROUTER)));
brd = find_lboard_class((lboard_t *)KL_CONFIG_INFO(nasid),
} while ( (brd = find_lboard_class(KLCF_NEXT(brd), KLTYPE_ROUTER)) );