Publishing RDS Farm over Internet

Hi I have created one RDS Farm using connection broker

Farm details

FARM DNS NAME :  FRM01 (192.168.1.10 AND 192.168.1.11) As suggested we have two IPs. This is working perfectly in LAN. Now I want to publish this FARM on internet so what Firewall rules I need to create. Do I need to enable RDP services on both IPS (192.168.1.10 AND 192.168.1.11) ?

Any suggestions

Regards Suman B. Singh