Friday, February 12, 2021

DHCP Option 82 for location based IP?

Is there any good information/examples on this? I've searched quite a bit but can't really find anything useful. So if someone has a link or just some simple example I would be very grateful. Or maybe a better idea on how to do this. Maybe a device in the middle with static IP which then forwards everything to the end-device. But then we have another point-of-failure.

I'm mostly confused about the hex pattern.

I want to configure Cisco switches to send the port info to our Windows DHCP server. Then assign reservation based on that.

Context: 24/7/365 environment and monkeys needs to be able to swap the end device. Production system looses IP-based contact with device since the reservation doesn't match anymore because of different MAC. Monkeys can't set static IP and certainly can not change reservation.



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