Thursday, September 19, 2019

Devices that support BootP and not DHCP?

Just curious, I've run across a newly manufactured device that does not support DHCP, only BootP. Is there any logical reason why a modern device would support BootP and not DHCP.

The flip side of that question is, would it be normal for a modern Layer 3 managed switch to support DHCP and not BootP? It was my understanding that DHCP was backward compatible to BootP.

Specifically, I'm talking about a Rockwell Powerflex 525 VFD (BootP only) and an N-Tron 708TX switch (doesn't support BootP), both common devices in industrial automation. However, Cisco switches do support many functions for BootP devices and private label to Rockwell as Stratix switches. It very much appears that Rockwell has removed DHCP support on the VFD to force the purchase of Stratix switches, but maybe I should instead be complaining that N-Tron switches are abnormally limited by not supporting BootP?

Is BootP basically dead in the modern age or is it a semi-common protocol?



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