Mikrotik connect to OPENVPN server

Hello,

I need to connect my router on my OPENVPN server (CentOS),

How can I do it? Does I need openvpn any license?

I’m add it on PPP → + → OVPN Client and I’m filling all requested forms.

But connection does not work

How can I connect it?

Thank you

openvpn need certificates

mikrotik support only openvpn tcp not udp and lz0 compression

i suggest to use l2tp over ipsec