Subject: Re: FYI: RST-ACK patent
To: Mipam <mipam@ibb.net>
From: Charles M. Hannum <abuse@spamalicious.com>
List: tech-net
Date: 05/25/2004 15:32:13
On Tuesday 25 May 2004 07:14, Mipam wrote:
> On Mon, 24 May 2004, Michael Hertrick wrote:
> > http://news.com.com/Cisco+to+patent+security+fix/2100-1002_3-5216494.html
> >?tag=cd.lede
> >
> > Apparently Cisco is trying to patent a RST-ACK mechanism for TCP.  Their
> > standard "Cisco will not charge royalties for implementing the patent"
> > and "The company reserves the right to use its patent defensively if
> > another party asserts its patents against Cisco." will apply.
> >
> > I send this information along not as if NetBSD would ever need to
> > implement something like this, but just in case anyone's been
> > considering it.....
>
> The patent statement is here:
>
> http://www.ietf.org/ietf/IPR/cisco-ipr-draft-ietf-tcpm-tcpsecure.txt
>
> the only thing is if you come back and sue Cisco for IPR infringment
> then cisco can use this patent against you. Btw, NetBSD implemented this
> draft (the fix that is) as far as i know.
> Bye,

And, FYI,. "announcing" patents like this is incredibly foolish.  All it does 
is make the case for willful infringement much stronger should you implement 
it and someone decide to sue.