Limit cps per source IP and port

[António Silva]

Hi,

is it possible to limit the number of calls per source ip and port 
before the dialplan?

I know that this can be done using mod_limit in the dialplan, i was 
thinking of a limit like the sessions-per-second global limit, this way 
less resources are used if some ip/port is flooding our machine.

Another possibility is using the firewall... but i like this option less 
because i wont know of the drop calls.

Thanks,

-- 
Saludos / Regards / Cumprimentos
António Silva