Anything between these ranges (inclusive) are private IP addresses:
- 10.0.0.0 to 10.255.255.255
- 172.16.0.0 to 172.31.255.255
- 192.168.0.0 to 192.168.255.255
The value of each octet (the number between the periods) starts at `0` and ends in `255`.
As a rule of thumb: these are private
- Anything starting with 10.*
- Anything starting 192.168.*
- Anything starting 172.16.* to 172.31*
Note that if you are trying to access your Duco instance, we can only whitelist public IPs, not private ones. You can check your IP on the page status.ducocube.com.