On Tue, 2006-01-10 at 17:24 -0200, Gerhard Fiedler wrote: > Peter Onion wrote: > > > I'm not sure that 255.255.255.255 is even a valid broadcast address ? > > It is valid. One RFC for this is 919 > > It says about 255.255.255.255: "The address 255.255.255.255 denotes a > broadcast on a local hardware network, which must not be forwarded. This > address may be used, for example, by hosts that do not know their network > number and are asking some server for it." Now that I am at home I have used ethereal to look at the packets my application sends, and they are indeed addressed to 255.255.255.255, so the example code I gave should work for you as well... Peter -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist