question

HussainAzizHassanSalehACCESS-1278 avatar image
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HussainAzizHassanSalehACCESS-1278 asked HussainAzizHassanSalehACCESS-1278 commented

SCCM PXE boot with IP helper configuration (PXE Responder no WDS)


I have SCCM environment with multiple VLANS:

  • SCCM server with PXE Responder no WDS on (subnet 1, VLAN 1)

  • windows DHCP servers (subnet 2, VLAN 2)

  • windows clients (subnet 3, VLAN 3)

We configured IP helper on the core switches as below:

  • IP helper-address <IP address of DHCP server>

  • IP helper-address <IP address of SCCM server>

  • IP forward-protocol UDP <IP address of SCCM server>

4011

Is there any thing I need to configure on DHCP servers. I mean is IP helper is enough or there are other requirements ?
because the clients still not booting from PXE







windows-10-networkwindows-dhcp-dnsmem-cm-osd
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SimonRenMSFT-3639 avatar image
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SimonRenMSFT-3639 answered HussainAzizHassanSalehACCESS-1278 commented

Hi,

Thanks for posting in Microsoft Q&A forum.

It looks like it is the WMI component that is missing from the boot WIM. Try following steps and check if it works.

  1. Remove your boot WIMs. Make sure that the boot WIM packages are removed from the PXE DP.

  2. Uninstall the ADK.

  3. Reinstall the ADK.

  4. Import a new boot WIMs from the ADK.

  5. Distribute the boot WIM packages to the PXE DP.

Refer to: PXE Fails during Windows PE

Hope above answer helps and looking forward to your feedback.

Best regards,
Simon


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Hi,
sorry for the delay, its working fine now after reinstalling ADK and redistribute the new boot image.

Thank you very much @SimonRenMSFT-3639 .

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SimonRenMSFT-3639 avatar image
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SimonRenMSFT-3639 answered SimonRenMSFT-3639 commented

Hi,

Thanks for posting in Microsoft Q&A forum.

1, Do not use DHCP options 60,66 and 67 on your DHCP servers. If the options are configured, the DHCP server will masquerade as a PXE server and respond to the client with path to the network boot program, then the PXE will failed.

2, Please contact your network team to configure the IP helper. Change the third command line to below to have a try.
IP forward-protocol UDP 4011

Useful articles for your reference:
PXE clients computers do not start when you configure the Dynamic Host Configuration Protocol server to use options 60, 66, 67
IP Helper-Address Configuration for PXE Boot
Note: The non-Microsoft link is just for your reference.

Best regards,
Simon


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Hi,

Just checking in to see if there is any update. May we know the current status of the question? If there is any other assistance we can provide, please feel free to let us know, we will do our best to help you.

Thanks and regards,
Simon

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HussainAzizHassanSalehACCESS-1278 avatar image
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HussainAzizHassanSalehACCESS-1278 answered

Hi,

Thanks, DHCP option 60 was enabled. clients boot successfully now after disabling it. However, I'm facing another issue now which is after PXE boot and image load the task sequence starts but suddenly quits and pc reboot. Attached is the SMSTS log file from one of the clients.


123233-smsts.log



smsts.log (7.5 KiB)
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LazherYAAKOUBI-7887 avatar image
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LazherYAAKOUBI-7887 answered HussainAzizHassanSalehACCESS-1278 commented

Hi,

it is recommended to use IP Helper, it is very useful and options 60 and 67 in DHCP are not supported by MS, I have tested IP Helper in my environment and it works fine :

124261-image.png



image.png (106 B)
image.png (40.8 KiB)
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Yes, only IP helper is needed no other configuration on DHCP required. option 60 was not deleted properly so I forced deleted it using PowerShell commands.

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