Let's try but I'm not sure whether we'd get everything up&running with just some forum posts...
-> What license has to be added to controller apart from AP license.
The first license that you need is the "Regulatory Domain Key" which tells the controller the country settings that should be supported - most of the time either NA (North America) or ROW (Rest of World i.e. EU)
https://gtacknowledge.extremenetworks.com/articles/How_To/How-To-Redeem-IdentiFi-Wireless-Controller...
-> Can I test adoption of AP's with the new controller out of Box.
Yes&No, you need to install the license and should upgrade to some newer software version.
Easy example = AP and controller in the same subnet/VLAN 10.10.10.0/24
- add a new topology
> Controller > Network > Topology > new
- mode = phyical
- VLAN ID = 1234 (doens't matter if untagged)
- untagged
- Port = PortX (1-2 are 1GB, 3-4 are 10GB, so choose the one that you'd like to use)
- Layer3 = checkmark
- interface IP = 10.10.10.1
- mask = 255.255.255.0
- DHCP = local server
- AP registration = checkmark
- Managment Traffic = checkmark
- SAVE
Connect the AP to the same VLAN, the AP will get a IP from the controller DHCP and should connect to the controller.
-> I dont want to use mgmt port ip address, I want to create a new L3 vlan for mgmt
As we've set "Managment Traffic" to enable (in the example above) you should be able to get GUI access via the
https://1010.10.1:5825
-Ron