OpenDNS has an application called OpenDNS Updater. It works by contacting OpenDNS with my network's public IP address which happens to be dynamic. Unfortunately, I can not use my router to handle this as their is no resource in the router to do this so I use the OpenDNS software.
The issue is when my mac sleeps — this will cause OpenDNS to lose track of us which in turn leaves our network exposed to content I prefer be kept out of our home network. That's the caveat to their system and my configuration.
I am trying to avoid keeping my iMac on 24/7, reduce my energy bill by having the mac wake up for a few minutes while OpenDNS Updater delivers our public IP address back to the OpenDNS dashboard.
If this helps you find an answer I would appreciate it. Thanks
Thanks for the conversation so far.
This link shows all the power consumption levels per iMac, http://support.apple.com/kb/HT3559 (iMac: Power consumption and thermal output (BTU) information)
I happen to own a 27 inch i7 3.4. It uses 142W per hour, that is much greater than an energy efficient light bulb.
I am afraid I really do need a power manager of sorts, I have to play around with Power Manager 4.1.3 for now. It would appear to wake my mac at a designated time of my choosing, open OpenDNS Updater and then go back to sleep.
Ideally, the router would be able to submit it's public IP address to OpenDNS dashboard but not apparently.