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Re: Ethernet with no IP address

Eric Barnes schreef op wo 10-07-2013 om 09:21 [-0500]:
> Man - thanks so much for all the answers so quickly.  Without going
> into boring detail....I have a client that has a patent on a network
> security device that he now wants me to build a prototype for.  Part
> of the patent states that the device is 'invisible' to the Internet
> because it has no configured IP ports.  It is supposed to sit INLINE
> in the network somewhere (say between router and single PC) and
> filter/block packets that come through it to the destination PC or
> vica-versa.  It's kinda like a bridge (only with logic processing
> during the bridge operation).  If we address the ports, then I depart
> from the patent and I have no idea what is allowed from a legal
> standpoint in doing something like this.  As a high level application
> programmer (mostly Java for the past 15 years), I find myself woefully
> short on the knowledge/experience to accomplish such a task.
> But again - thanks all for the responses!

You're saying he has a patent for OpenBSD Bridging Firewall and/or Linux
Netfilter functionality? Interesting to say at least. I even suspect it
would cover IBM/Intel Tokenring Bridges as well. Then again I'm not a
lawyer luckily and/or on your end of the table.

If he wants to sell it as an appliance without source code, then OpenBSD
may be a better path to follow due to the nature of the BSD and GPL
licenses. Otherwise he/you may go the path of D-Link/AVM/SUN when SFLC
finds out what your client is doing. You may want to get some legal
advise and SFLC is in most cases willing to answer your questions btw.


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