(dhcpd.conf update) Re: Is there a way to install DragonFly via network (w/o CD) ?

esmith esmith at patmedia.net
Thu Oct 14 03:00:59 PDT 2004


Matthew Dillon wrote:
    I did some more experimentation and, unfortunately, it looks like 
    the BIOS PXE boot code (at least the one on my machine) seems to accept
    responses from 'other' dhcp servers even when they do not supply the
    correct information, preventing proper operation.  This could wind up
    being an issue for cable and dsl modem based dhcp servers but it should
    not be a problem if you are simply running two dhcp servers from UNIX
    boxes as you can program your primary dhcp server to ignore the
    PXEClient vendor class.  I checked the BOOTP kernel code and it will
    ignore responses from servers that do not supply a root path, so at
    least the kernel will ignore them.
There's one other problem, in the reverse situation. Consider the machines that do 
not want to pxeboot. They will recieve two responses for dynamic IPs and they will 
keep the second response, even if it comes from our pxeboot dhcp server and not the 
normal dhcp server. This may or may not cause a problem but, it leaves the 
possibility open for one to occur.





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