Flexible counters for traffic calculation

By default, FastNetMon allocates memory for all networks in networks_list. With flexible counters option it will allocate memory only for really used hosts with traffic.

You can easily add really big networks like /8 or even bigger and FastNetMon will allocate memory on demand.

You can enable this feature this way:

For debugging purposes, you can check number of counters allocated for hosts in your network this way: