Why does a DHCP request from the HPE 1920-24G Switch (JG924A) send a long, long string of who knows what instead of the MAC?

Question

Computer networks

HPE 1920-24G Switch (J924A). When requesting an address via DHCP, it transmits a string as a MAC, four times longer. I'm not so much interested in where it comes from, but how to get rid of it.

Answer 1

Option 61 - Client Identifier
If present in the request, the server may issue IP addresses with this option in mind.
Routing > Configuration > VLAN/Interface Configuration, Option DHCP Client Identifier
https://impuls-it.ru/upload/iblock/87c/emr_na-a000...

Answer 2

I constantly have this crap with some clients (both Fedoras), the server is Windows Server 2016. It is fixed in one line in the client settings in dhcpd.conf, I don’t remember the details, if necessary, write, I’ll look in my notes.