pxe boot

[rkuczyk at univ-paris8.fr]

hello,
i'm trying to (pxe)boot sun ultra20 clients.
I see dhcpdiscover and dhcpoffer when i turn my dhcpd ( version 
3.0.1rc11) in debugging mode.
on the other side, on the same subnet ( i moved the switch for a hub) i 
make a snoop on sun client:
i see any requests from client to server (bootps), but none of the 
server to the client (bootpc).
did anybody have to deal with this case of figure ?
regards