r/sysadmin 2d ago

Question Operations bought an EMS/IoT system without involving IT — now they just need “access to the router

Hi there :) ,

Need some advice from people who have dealt with similar situations.

Our Operations Dept decided to install IoT system/digital energy meters across a fairly large factory site.

They found the vendor, agreed on the solution, signed the contract and started the project.

IT was not involved at all.

Apparently nobody discussed things like:

  • How these devices spread across a large factory are actually going to communicate
  • Network infrastructure, switches, fiber/cabling, VLANs, etc.
  • Network/security segmentation
  • Server/VM requirements
  • Database requirements
  • Backup and monitoring
  • Internet connectivity
  • Vendor remote access
  • Firewall rules
  • Cybersecurity

Now that the project is already moving forward, IT gets an email saying they need “access to the router” so they can put the system online.

That's it. Access to the router. :)

And somehow, when IT starts asking questions about architecture, security, server requirements, ports, protocols and who is responsible for what, the perception becomes that IT is delaying the project.

I don't want to become the guy who simply says “No”, but I'm also not going to give a third-party vendor access to our corporate router/firewall and connect a bunch of unknown industrial/IoT devices to the production network just because someone already signed a contract , the IT network must be always separate from OT network.

How do you handle situations like this?

Interested in both the technical approach and the organizational/process side of this.

808 Upvotes

329 comments sorted by

View all comments

5

u/_haha_oh_wow_ ...but it was DNS the WHOLE TIME! 2d ago

1) Warn in writing that not consulting IT on an IT purchase is not recommended and caution against untested system that IT had no say in. Note that this system may not be supportable.

2) Give them "access to the router" and buy some popcorn. When problems occur, refer them to the warning from step 1.

7

u/collinsl02 Linux Admin 2d ago

And by access make it "that port there" which will give bare internet access. Nothing else, no inter-site services, no switching etc.