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

[esmith <esmith@xxxxxxxxxxxx>]

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.