Where to find ...nvdlfwea...-NGC_Containers?

Hello all out there,

I’m building NGC-Containers like here Dell using the Dockerfile.
The Dockerfile contents: ARG FROM_IMAGE_NAME=nvcr.io_nvdlfwea_mxnet:21.09-py3
To this source I have no access.
Where to find it and how to see differences to nvcr.io_nvidia_mxnet:21.09-py3?

For the value of ARG FROM_IMAGE_NAME please replace _ with / . I had to write in this way, otherwise the texteditor of this website will show something like:
“Sorry. New users can only use one link in a topic.”

To read from you would be fine!

Kind regards,