Accessing the IP address list in contiki

Question

So, I have this UDP server and client connection. The stack is 802.15.4, TSCH, 6lowpan, IPv6. I think there's a function in contiki that lists the IP addresses of clients when associated with the server. 

What I would like to know is, which function should I use to access this list, save to this list and get stored IP's from this list.

Answer 1

You can access the list of clients by looking in the Neighbor Cache. 

Try something like this.

#include "uip-ds6-nbr.h"
#include "nbr-table.h"

uip_ds6_nbr_t *nbr = nbr_table_head(ds6_neighbors);
while(nbr != NULL) {
    // do something with the neighbor here
    // its IP address is nbr->ipaddr
    // ...
    nbr = nbr_table_next(ds6_neighbors, nbr);
}