With the latest IpConfig tool, all of this can be accomplished with the tool its self. Carefully read the included directions for the config tool. It's in the little turret icon at the upper right corner.
Alright, that was definitely more involved than the Amcrest cameras. I'm glad I know how to do it now, I have a couple more Dahuas on the way. The look on my wifes face when I went out after midnight in the pouring down rain to install that camera was priceless. She said I can barely get you to take the recycle bin out to the sidewalk when it's raining.