FreeRadius 2.2.0 Redhat Linux 6.2 Please forgive me in advance if some of the things I say seem to be generalities and not per RFC, the firm where I work has recently decided to start using freeradius DHCP as DHCP server and I am the programmer/integrator/project lead for the entire thing. Our preliminary tests were very successful, we were able to hand out leases to various clients and also various options as well. However when it came to PXE Boot we sem to have run afoul of either my lack of knowledge or Microsoft going out of their way to "help" network admins. Here is the problem, as expected I have set option 66 -- DHCP-TFTP-Server-Name and option 67 DHCP-Boot-File-Name, however tge PXE boot process has not been completed and we get an error message PXE-E32 and according to this article http://www.bootix.com/support/problems_solutions/pxe_e32_tftp_open_timeout.h... we have to set option 066 next server. However this is not what option 66 is. Looking at the tcp dump that was produced on the freeradius server I can see that "next server" field is the same as the "DHCP-Server-Identifier", and while changing this value to the one of the TFTP server also changed the next server field as expected it also broke dhcp. Also the people who have successfully booted their PXE hardware in the lab sent me a a pcap where clearly the next server and Identifier are clearly different and also the boot-file-name is set as well, where as in my pcap I only see it in the dhcp options not in boot options header (I must clarify at this point that I am using ethereal to decode and read packets). Which is why I am thinking that options 66 and 67 are not used for PXE boot, but microsoft dhcp seeing those options also takes care of backword compatibility, and so as far as everyone in windows land is concerned they need to set options 66 and 67. Can anyone help please? Regards, Lev Bronshtein P.S. I figured out that I ned to set both DHCP-Server-Identifier and DHCP-Server-IP-Address, which gave me the next-address. However I still can't figure out the boot file option