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Para una petici\u00f3n, la elecci\u00f3n de la configuraci\u00f3n TLS puede ser diferente a la elecci\u00f3n del router, lo que implica el uso de una configuraci\u00f3n TLS err\u00f3nea. Cuando es enviada una petici\u00f3n usando FQDN manejada por un router configurado con una configuraci\u00f3n TLS dedicada, la configuraci\u00f3n TLS vuelve a la configuraci\u00f3n por defecto que puede no corresponder a la configurada. Si el aplanamiento de CNAME est\u00e1 habilitado, la configuraci\u00f3n TLS seleccionada es la de SNI y el enrutamiento usa el valor de CNAME, por lo que puede omitir la configuraci\u00f3n TLS esperada. La versi\u00f3n 2.6.1 contiene un parche para este problema. Como medida de mitigaci\u00f3n, puede a\u00f1adirse el FDQN a la regla de host. 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