I have a need to demo IP enabled equipment at potential customer premises FROM THE OUTSIDE.
This causes all kinds of headaches getting the IT guy to open up an incoming port to my box so I can command it from my office.
I am wondering if there is an applicance that uses outgoing requests to fool a firewall into allowing the outside data in.
It would need to be a paired setup and best if it uses port 80. Since the inside device would essentially be polling the outside device, it would not be fast - but it does not have to be.
I talked it over with a couple of VPN appliance vendors and one of them said it was possible - "basically that is how IM gets in" but he did not know of one.
Anyone know if this exists and where I could buy one?