rpld, which at present runs only under Linux, will net-boot IBM style RPL boot ROMs (this is not the same as the Novell IPX-style RPL protocol, despite the name). It also understands Linux kernel images and will correctly download them to clients.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.