OpenVPN + Mikrotik com chave de criptografia DES-EDE3

Boa noite amigos,

Estou tentando fechar um tunel OVPN no Mikrotik como Cliente e o Servidor é Linux - OpenVPN, uso chave de criptografia, importei no mikrotik a chave publica e privada, mas o servidor usa DES-EDE3 e não consegui acertar no mikrotik as configurações de OVPN_Client. Vejam abaixo o erro que aparece no LOG do Linux.

Thu Aug 9 11:47:33 2012 WARNING: 'link-mtu' is used inconsistently, local='link-mtu 1544', remote='link-mtu 1494'
Thu Aug 9 11:47:33 2012 WARNING: 'tun-mtu' is used inconsistently, local='tun-mtu 1500', remote='tun-mtu 1487'
Thu Aug 9 11:47:33 2012 WARNING: 'ifconfig' is present in local config but missing in remote config, local='ifconfig 10.0.5.1 10.0.5.2'
Thu Aug 9 11:47:33 2012 WARNING: 'comp-lzo' is present in local config but missing in remote config, local='comp-lzo'
Thu Aug 9 11:47:33 2012 WARNING: 'cipher' is used inconsistently, local='cipher DES-EDE3-CBC', remote='cipher [null-cipher]'
Thu Aug 9 11:47:33 2012 WARNING: 'auth' is used inconsistently, local='auth SHA1', remote='auth [null-digest]'
Thu Aug 9 11:47:33 2012 WARNING: 'keysize' is used inconsistently, local='keysize 192', remote='keysize 0'
Thu Aug 9 11:47:33 2012 Data Channel Encrypt: Cipher 'DES-EDE3-CBC' initialized with 192 bit key