I'm not sure what you are getting at. Your ISP will either assign you a static IP or a dynamic depending on the plan you have. Many plans come with a static IP these days. If you have a dynamic IP then you will need to register for a Dynamic DNS service.
If you are talking about giving the DVR a static IP on your local network, such as 192.168.0.100, you can set that all up in your router menu. You will then need to set up port forwarding in your modem to forward outside requests to the DVR for remote viewing applications. Make sure that you have changed all of your passwords from their default before doing that.
Thank you for the reply,
I have a internet plan with static IP, need to view DVR in my iPhone or from outside anywhere. I have no any idea how to do that?
Thank you