Unifi controller DHCP option

Unifi AP has to be on the same L2 segment, or can be suggested about controller in the different L2 via DHCP option:

Option code: 43
Value: 0x0104 + hex IP of controller

IP to hex can be converted using for example: https://shimi.net/services/opt43/

Use just IP part of hex, because cisco has different hex prefix than UBNT.

Set this values to IP > DHCP Server > Options > +

name	describe usage
Code	43
Value	0x01040AACBE1F

And finally use this option in the IP > DHCP Server > Networks > xx.xx.xx.xx/yy > DHCP Options