Comment CYA most likely (Score 2) 1307
I would insist on the same if I were in that person's shoes.
The network is managed by IT, and they need to know exactly what is running on it.
It would be negligence to allow an unmonitored/uncontrolled server inside of the firewall.
Also, anything related to IT stands a strong chance of being inherited by IT in the future.
Someone sets up a system, and then they leave and IT is left to reverse-engineer the whole thing because they weren't involved.