Hello! > Without this patch windows respond with an error message ... which is right. At least, it is exactly how proliferation of bogus addresses, is prevented in our lan. Host with a random address not known to router cannot exist on the lan. BTW "fail-safe" sounds very strange, "safe" usually means that something starts to work a bit. :-) Alexey - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html