Hi,
Thanks for your reply.
==>In IP helper should it contain the request for both the PXE server and the DHCP server? Means should it sends its broadcast to both of them?
Yes, it should contain the request for both the PXE server and the DHCP server. After disabled scope option 60,66, and 67, based on my experience, there are no other special settings for DHCP.
Generally, a client computer boots from the network by using the PXE protocol according to the following process, which involves three parties (the DHCP server, the PXE server, and the client):
1.The client computer broadcasts a DHCP packet that asks for the address of the DHCP and PXE servers.
2.The DHCP server responds, sending a broadcast packet that tells the client it is an address server.
3.The PXE server responds to the client and reports that it's a boot server.
4.The client sends a request to the DHCP server to ask for the IP address.
5.The DHCP server sends the IP address to the client.
6.The client sends a request to the PXE server to ask for the path to the Network Boot Program (NBP).
7.The PXE server responds, sending the NBP path.
8.The client downloads and runs the NBP.
After this process, the basic PXE boot is completed, but there will be additional interaction between the client and the PXE server. This is controlled by the NBP implementation.
Best regards,
Simon