Hi Rene , If possible , please provide information/lesson about NAT box-to-box high-availability support and describes how to configure .
Thank you so much for your lesson suggestion! You can go to the Member Ideas section and describe in detail the suggested lesson that you would like to see on the site. You may find that others have also suggested something similar, and you can add your voice to theirs. Rene chooses the next lessons to be created based on these suggestions as well.
In the meantime, if you want to find out detailed information about this particular feature, take a look at the following Cisco documentation:
I hope this has been helpful!