Off Topic - Block iCloud -

[Joe Zeff]

On 04/09/2013 02:46 PM, Bob Goodwin - Zuni, Virginia, USA wrote:
> I had not seen that page but scanning through it the most likely
> candidate is port 443 which I had seen elsewhere. However I see no
> simple way of closing that port in DD-WRT. Closing it in iptables on
> this computer wont stop iCloud to the Macs, etc. I tried blocking
> several ip addresses I found Googling but that was not enough, perhaps
> not a complete list?

It also mentions 5523, Apple Push Notification Services.  Dropping that 
at the router may do what you need.