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SCCM PXE Boot Deep Dive – Backend Flow & DP Migration
SCCM PXE Boot Deep Dive – Backend Flow & DP Migration
I recently worked on a Distribution Point migration and noticed PXE requests were still routing to the old DP due to DHCP/IP helper configuration.
I put together a deep dive explaining:
PXE flow (DHCP and TFTP sequence)
Role of Distribution Points
What changes during DP migration
Common failure points
One key takeaway:
PXE issues are almost always network and routing related, not SCCM itself.
Curious how others are handling PXE in large environments.
Are you standardizing on IP helpers or still using DHCP options?
Full article:
http://SCCM%20PXE%20Boot%20Deep%20Dive%20–%20Backend%20Flow%20&%20DP%20Migration
1 Reply
I’ve used both approaches depending on the customer environment, but nowadays IP Helpers are usually the cleanest and most reliable option for PXE.
I still had to use DHCP Options in some smaller or legacy environments, but as you mentioned, most PXE/OSD issues end up being related to networking or security rather than SCCM itself.
And it’s not only about directing clients to the correct DP. I’ve seen many cases where the ports and communication required after PXE during OSD were not fully configured by security/network teams, causing random failures later in the task sequence.
From my experience, before an OSD issue reaches the DP configuration level, it usually starts somewhere in the network or security layer. Even when all requirements are shared with those teams, there’s almost always one missing configuration somewhere.
