Ingreso a virtual servers
relleno los sisguientes campos
y duck dns no queda configurada menos mal me vi el video de drive y pude recuperar mi trabajo, no se si tenga NAT Loopback. Tengo que hacer lo de la segunda parte del video o como podria configurar esto para que me funcione gracias J.
Are you attempting to access home assistant from outside your network?
No, I’m at home but I want to configure duck dns to leave the network
When you are allowed to 
(I see your post is in Spanish, are you in Spain? If so, my commiserations, stay safe).
If you have a local dns server (I use pihole) you can set your duck dns address to resolve to your raspberry pi local IP address. Then you do not need loopback.