Hello @idflorin, So, my main domain is hosted by Registro.br, a company from Brazil, and here in Brazil they have to use two different ips, don't ask me why. Unlike Godaddy we use the same.
The return of the domain registration company was as follows:
Hello, Henrique.
The intention is to link these servers to the m********.com.br domain. Case
positive, it is not possible to make the change change the same IP for
both nameservers.
I apologize for possible errors in English I am still adapting to this new language