Aktualnie UDP nie jest wspierane.

Currently unsupported OpenVPN features:

  • UDP mode
  • LZO compression
  • TLS authentication
  • authentication without username/password

Źródło: https://wiki.mikrotik.com/wiki/Manual:Interface/OVPN

[admin@MikroTik] > interface ovpn-client print
Flags: X - disabled, R - running                       
 0  R name="ovpn-out1" mac-address=02:4E:44:3C:6B:77 max-mtu=1500 
      connect-to=81.2.237.247 port=1198 mode=ip user="myvpn" password="" 
      profile=OVPN-client certificate=client verify-server-certificate=no 
      auth=sha1 cipher=aes128 use-peer-dns=no add-default-route=no

[admin@MikroTik] > interface ovpn-client monitor 0
    status: connected
    uptime: 5m19s
  encoding: AES-128-CBC/SHA1
       mtu: 1500
-- [Q quit|D dump|C-z pause]

Refs