Recently, I needed to reinstall one of my machines at home. My choices were find a USB drive and setup the installer or finally get around to setting up network installs. At this point I can setup network installs in my sleep, so that was the better choice. I use an Edgemax router at home, which is based on Vyatta. Figuring out the configuration necessary to do this took longer then anything else.

For reference:

set service dhcp-server global-parameters "if exists user-class and option user-class = "iPXE" {"
set service dhcp-server global-parameters "filename "/iPXE.conf";"
set service dhcp-server global-parameters " } else { "
set service dhcp-server global-parameters "filename "ipxe.pxe";"
set service dhcp-server global-parameters "}"
set service dhcp-server global-paramters "next-server TFTPSERVERIP;"

I’m only using TFTP here, but it’s just as easy to use HTTP.