Local ip share when share links with external customer

Thanks for help. you want some information about my infrastructure.

    • Do you already have a domain name to access the Nextcloud from outside your network?
      I have not any domain name. I have only static IP which provided by my ISP. but i can access the our nextcloud server from out side using only use static IP ( Public ( IP)…like 89.166.152.63:8282.
  • How does your network infrastructure look like? Router, firewall, DNS etc…?
    I have a router which provided by ISP .At ISP router configure a DMZ zone . After that I have a firewall .at this firewall port has been forwarded.

for example i have create a sharelink which showing the address is http://192.168.0.7:8282/s/bHNFr5GQ46MPSqs
but i want change the this ip 192.168.0.7 to our static ip 89.166.152.63
how can be do that ?

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