Mikrotik Hotspot Inline Method

Hi,

I recently purchased a RB951Ui-2HnD. I connected my Mikrotik to a switch at port1 with DHCP Client enabled so that I get IP from the switch in the range of 192.168.0.xxx/24.

How can I create a hotspot network, but I want the client to get same IP range from the switch (192.168.0.xxx/24) but still need authentication before login. I dont want guest to get the 10.5.50.0/24 IP. Is this what we call hotspot without NAT?Is this setup possible?