You'll still have open ports on the LAN. With OpenZiti you can even shut down the host firewall from having any open ports which I think is pretty cool. :) Plus

You'll still have open ports on the LAN. With OpenZiti you can even shut down the host firewall from having any open ports which I think is pretty cool. :) Plus you'll be able to access Jenkins from anywhere at that point - even from home - just like you were on the LAN. Maybe you'll find that useful someday in the future and give OpenZiti a try! :)