Smoothwall School Guardian

On School Guardian, you'd implement as follows:

0.32 and below

 * 1) in Services > DHCP > DHCP Server, select your subnet and click the advanced button
 * 2) under "TFTP server" enter the IP of your FOG server ("TFTP Server" field = DHCP "nextserver" field)
 * 3) under "Network boot filename" enter the filename on the TFTP server, which AFAICT is pxelinux.0
 * 4) Click save at the bottom of the page. You'll need to restart the DHCP services via Services > DHCP > Global

0.33 and up

 * 1) in Services > DHCP > DHCP Server, select your subnet and click the advanced button
 * 2) under "TFTP server" enter the IP of your FOG server ("TFTP Server" field = DHCP "nextserver" field)
 * 3) under "Network boot filename" enter the filename on the TFTP server, which AFAICT is undionly.kpxe
 * 4) Click save at the bottom of the page. You'll need to restart the DHCP services via Services > DHCP > Global

Thanks: Jerry (techobi)