Yes that private interface routes all traffic out the public IP, and the same inbound. By default it effectively does 1:1 NAT. What is the other interface for? Are you planning to run other services behind the CHR?
Yes in my experience (for 1 year), just as long as you don't exceed the maximum 100GB usage and use the correct size instance as outlined in the terms for your location. The only cost is the one off for the CHR licence. Hope that helps.
another question , i've seen there is only one interface has private ip address , where i can add other interface ?
Yes that private interface routes all traffic out the public IP, and the same inbound. By default it effectively does 1:1 NAT. What is the other interface for? Are you planning to run other services behind the CHR?
Is it really free to install Mikrotik?
Yes in my experience (for 1 year), just as long as you don't exceed the maximum 100GB usage and use the correct size instance as outlined in the terms for your location. The only cost is the one off for the CHR licence. Hope that helps.
@MikroTikMasters Thank you for answering