Hi,
I’m Mikrotik noob, so please bear with me for a moment 
I wish to setup DMZ over WLAN adapter on Mikrotik router, while LAN can stay as it is.
I have ISP’s ADSL router in bridge mode connected on LAN1 on Mikrotik who is calling WAN over PPPoE.
All I wish is put my PS4 on DMZ over WLAN, so I’m ready to reboot router and start from scratch.
Thank you in advance 