Lightspeed proxy setup

[paradiselost79]

We have lightspeed setup as our inline filter for while at school, but students are now getting 1:1 tablets. I was able to force a proxy to the Chrome browser they are using (they are using Google Apps for Ed tablets), but the lightspeed is behind our firewall. I cannot figure out how to allow students to get to the lightspeed from outside. Here is a layout:

LAN --- Lightspeed (bottle rocket) --- Firewall --- ISP

So while internal, students are filtered using anything. But from outside, my test tablet cannot connect to the proxy. I have a Sonicwall, and it is frustrating using their 'rules' setup, I cannot figure out how to forward 8080 requests to go to the lightspeed. Any help appreciated.

[Edu-IT]

Does your Lightspeed have a public facing IP address?