The internal network has no ability to transfer files off the internet, so its not possible for the YUM repository to download updates from a Fedora mirror. The internal network is a seperate, independent, not-connected-to-the-internet network. Also, I would rather not have a YUM server working on the internal network, as this is a DOD network, and its regularly scanned for services running (like a YUM server listening for clients), and any network service that I'm running would have to be accredited, which is a lengthy paperwork excercise. Finally, the mode of operation is that I'm probably only going to find the time to download the patches on a once a month basis, so a yum client polling a yum server for the latest patches is a waste of bits. I'm just looking for a easy way to have yum upgrade the OS off a local CD when I ask it to.
Hope that helps you understand what I'm looking for.