Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uunet!cs.utexas.edu!wuarchive!brutus.cs.uiuc.edu!lll-winken!gauss.llnl.gov!casey From: casey@gauss.llnl.gov (Casey Leedom) Newsgroups: comp.protocols.tcp-ip Subject: Re: Ye Old Discard Protocol (WKS == 9) Message-ID: <40184@lll-winken.LLNL.GOV> Date: 1 Dec 89 23:58:12 GMT References: <8911301910.AA03187@sneezy.lanl.gov> <40114@lll-winken.LLNL.GOV> Sender: usenet@lll-winken.LLNL.GOV Reply-To: casey@gauss.llnl.gov (Casey Leedom) Organization: Lawrence Livermore National Laboratory Lines: 27 As an expansion and follow up of my mention of "multicast" is my last note, I offer the following: I request that companies who currently use ``Broadcasted License Numbers'' (BLN) as a product copy protection scheme, use a multicast address instead of the broadcast address. The merits or demerits of doing license checking are somewhat political. The obnoxiousness of interrupting every other host on the network regardless of manufacture just to check one manufacturer's license is untenable and unjustifiable. I would suggest either registering a special multicast address for each company's product or better yet, register a general ``License Multicast Address'' (LMA) that all companies could use for such purposes. That would encourage all companies interested in doing BLN to do it with the LMA. The fact that all these companies' products would be interrupting each other left and right can only be counted as a feature ... Perhaps the resulting slowness of such products would form a market force that would select for products that concentrated their anti-copying efforts on quality of product and service rather that algorithmic means. Perhaps we could even get this into the Host Requirements RFC as an addendum ... :-) Casey Brought to you by Super Global Mega Corp .com