VPN Server Remote Administration

[kmmng]

Hello,
I have installed SoftEther VPN Server on my OpenWrt router.
After some hours of experimenting I was able to configure it remotely using Server Management Tools.
Now it works and I can connect my network from outside.

But there is one thing I wasn't able to understand how to do it.
Currently I can connect from outside and I also can administer the VPN Server from outside, without connecting the VPN but only using my hostname and admin password in remote installation of Server Management Tools.
Can I configure the VPN Server to allow remote administration only from LAN and not from outside network? Or even better, only from specific IP address on my LAN?
It is okay for me that if I connect to VPN, I will be able to manage the server. But I want to block management-only connections from outside, is this ever possible?

Thank you.

[solo]

https://www.softether.org/4-docs/1-manu ... .txt_Files

[kmmng]

Thank you very much!
I have read this page multiple times but somehow missed the last paragraph about adminip.txt file.