-int debug=0; /*set to 1 to turn on debugging information*/
-int count=-1; /*Default number of pings (-1 is infinity)*/
-int dest_port=33434; /*Default port*/
-int ttl=64; /*Default TTL*/
-long interval=1000; /*Default delay between pings in ms*/
-int ip_type=AF_UNSPEC; /*IPv4 or IPv6*/
-ipaddr_ptr_t dest_addr; /*Destination Address*/
-ipaddr_ptr_t src_addr; /*Source Address*/
-struct request_queue queue;
-struct stats ping_stats;
-extern int errno;
+int debug=0; /*set to 1 to turn on debugging information*/
+struct request_queue queue; /*Queue of requests to track RTT/duplicate information*/
+struct stats ping_stats; /*Ping Statistics*/
+struct params parms; /*Parameters for ping*/