HP MSM760 controller to RB2011 to handle hotspot

Hello everyone; for whatever reason, my brain is having trouble getting this configured correctly, and I want to thank anyone in advance that helps me out.
Current setup on the RB2011UiAS:
Ether1: outside network (internet)
Ether2: connection to HP MSM760 controller
Ether5: connection to ESXi host (NIC #1)
Ether6: connection to ESXi host (NIC #2)

The ESXi host is on our internal network, but the VM it hosts (192.168.89.x) is separated for security, but can talk to the RB. I use vSphere to get to the RB through the WinBox or WebFig interface.

The SSID (let’s call it GuesT) that I want to run through the RB is on VLAN 240, and the HP MSM760 has IP 192.168.88.3 and the RB has 192.168.88.1 on this VLAN. The HP and RB can talk to each other here.

My goal is to use the RB to handle account signups for a guest wireless network. We want to be able to track users and devices to make sure they aren’t abusing their privileges, and we won’t be charging anything for the use of the network. Ideally, the new user would simply enter their email address through a web-page and they’d be off browsing the internet. You should also know that I am coming into this after two other people have given it a shot, so there are configs and partial configs scattered about.

If someone does feel like helping me out, it may be best to Please feel free to ELI5 - I won’t be offended. :slight_smile: