int d1_len; // extra header data 1 length
int d2_len; // extra header data 2 length (future)
int nn_sock; // our general listen socket
+ int rtable_ready; // set to true when rt is received or loaded
route_table_t* rtable; // the active route table
route_table_t* old_rtable; // the previously used rt, sits here to allow for draining
route_table_t* new_rtable; // route table under construction