Every ISP has to provide you with a public IP address, if they give you a private IP address somethings fishy. Most ISP's will give you a dynamic IP adress by default, not a static one. Static IP addresses you do sometimes have to pay for even from the best service providers. Not all ISP's will let you port forward from your gateway. These are usually cheaper ISP's don't use them if you can help it.
So here's what you do:
• Find another reputable ISP that will allow you to use port forwarding in the router/ gateway they provide. Sign up with them, and use them. Make sure you buy a DVR that supports DDNS I can think of 1 company that has a great free DDNS service that uses your DVR, not some bizzare set up that bounces you to China or wherever.
• Set up your DVR and cameras, and port forward your DVR.
• Write down the name of the ISP that is giving you such a nightmare, because it's good to know who has good service and who doesn't, its also good when other people know so they can avoid these horrible ISP's.
* Remember there is usually more then 1 ISP you can use depending on where in the world you are. The better ones don't try to rape you for common services that the major ones provide.
