Unfortunately, I don't control which networks all of our systems get put on. All Windows on one network and all of our *nix systems on separate ones to make use of IPHelpers is unrealistic here. I use DHCP to control whether to PXE to SCCM, WDS, or Cobbler for *nix, on a per system basis with reservation options, or scope with scope options where it makes sense. It's worked great for a number of years, and we've never had any issues with it.
And Michael is right, any problems I've ever seen with WDS/PXE/DHCP/SCCM have all been endpoint problems. i.e. PXE code on/in the NIC on the device being PXE booted. When I get complaints about WDS not working, my first response is always "Have you updated the BIOS on your computer?" And that usually clears it up. We're a Dell/VMware shop mostly, and homogeneity helps a ton in this regard. We haven't come to the UEFI vs. non-UEFI bridge yet, so we haven't had to come up with a way to cross it. I suspect it's closer than I'd like though. Todd From: [email protected] [mailto:[email protected]] On Behalf Of Michael Niehaus Sent: Sunday, January 4, 2015 12:06 PM To: [email protected] Subject: [mssms] RE: PXE Service Point from DHCP Scope The problem with the statement is that it doesn't say "why." There have been a number of support cases opened where DHCP options didn't work correctly (and in some configurations, extra complications for UEFI vs. non-UEFI); these have been traced back to problematic firmware revisions on random PCs. So it's much easier to say "not supported" than to say "use at your own risk and don't call us if it doesn't work." Thanks, -Michael From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Andreas Hammarskjöld Sent: Sunday, January 4, 2015 4:59 AM To: [email protected]<mailto:[email protected]> Subject: [mssms] RE: PXE Service Point from DHCP Scope Senior found it: http://www.microsoft.com/en-us/download/details.aspx?id=44598 "All bollocks" as the English would say though: "Furthermore the use of DHCP Options to control PXE requests in Configuration Manager 2012 is not supported by Microsoft. Therefore the recommended and supported method of PXE booting client PCs that are on a different subnet than the DHCP or WDS/PXE Service Point servers is the use of IP Helpers. " I think the quote from the *nix community is more spot on: "As I see it in the windows world nobody actually know how DHCP works - or are just too lazy to try to understand it. And it is impossible to configure WDS and it breaks if you even try to look at it." So what we have here is a failure to communicate... //Andreas From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Andreas Hammarskjöld Sent: den 4 januari 2015 13:05 To: [email protected]<mailto:[email protected]> Subject: [mssms] PXE Service Point from DHCP Scope Hey, I seem to recollect a discussion where it was mentioned that it wouldn't work booting from a PSP using DHCP options or was that just a "not supported" clarification? Been doing some oogling on it but seems like people are confused mostly? //A Best regards, //Andreas Co-Founder +46 727 253995 http://2pintSoftware.com https://twitter.com/AndHammarskjold
