How to access the camera from the outside and from the inside at the same address?

Question

Computer networks

There is a DVR with cameras hanging on it. Inside the office, they can be seen by the internal address, and to look outside, ports are forwarded to the external ip. If you connect from a mobile phone, then everything works and the cameras can be seen normally, but when you come to the office and cling to the Wi-Fi (you get an internal address), the cameras fall off. If you drive in 2 profiles (one inside, the second outside), then everything works here and there, but it's inconvenient! What needs to be configured so that the cameras can be seen both there and there at 1 address? as I understand simple dns will not save me, tk. he will send me the same external address and inside the camera they will still fall off.

Answer 1

Google hairpin nat, this question has already been answered on the toaster.

Answer 2

Use DNS for cameras? On external dns give external ip address, on internal - internal.

Answer 3

Advanced video surveillance manufacturers now have normal working cloud services. If you add a registrar to your phone not through static, but through a cloud service, then it will open everywhere using one profile.
What brand of DVR do you have?