DNS should be DHCP

Signed-off-by: Doug Evans <dje@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Message-Id: <20210122004251.843837-1-dje@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>