I am on the Oracle internal network.
I installed the repo setup package from http://kernel.us.oracle.com/uln/.
This installs a couple of ULN repos:
But neither the update or update-nox command have any effect.
I am on the Oracle internal network
I suggest you therefore ask youur internal resources for help.
This forum that you have posted to is an external user community public forum and no one here is expected to have access to the quirks and nuances of your internal setup.