OpenVPN - File created with ifconfig-pool-persist is destroyed upon system reboot
File created with the ifconfig-pool-persist Advanced Configuration option is destroyed upon system reboot.
In the server Advanced Configuration, specify a file with the ifconfig-pool-persist option. Example: "ifconfig-pool-persist /var/etc/openvpn/server2-ipp.txt;"
The file and entries remain when restarting the OpenVPN server instance.
However, the entire file is destroyed upon a system reboot.
This even occurs if the [seconds] are set to "0" to make the file read-only by the server.
This was not the behavior in 2.1. Not sure exactly when it was introduced.