Subject: Re: ICMP attacks against TCP
To: Mipam <email@example.com>
From: Fernando Gont <firstname.lastname@example.org>
Date: 12/10/2004 12:40:10
At 12:42 10/12/2004 +0100, Mipam wrote:
> > Not sure what you mean by "Cisco-patented window-checks". If you mean that
> > of checking the TCP sequence number in the ICMP payload, then that's not
> > patented by Cisco. I had received a notification from Cisco's lawyer
> when I
> > published the first version of my draft, saying that they had a pending
> > patent on it.
>I guess he means this:
>(statement by Robert Barr from Cisco about the license)
If so, that's completely unrelated to my draft. The counter-measures
proposed in that draft don't have to do with TCP sequence number checking,
as TCP seq number checking is mandated by RFC 793 when you process TCP
>The draft itself is here:
>Though, the page cannot be found now anymore ...???
>I guess the ietf moved the page somewhere else, i can't find it now.
No, it's just that the draft was updated. Use the "Search I-D" link in
http://www.rfc-editor.org and search for "draft-ietf-tcp-secure" . Or visit
the TCPM WG web page at http://www.ietf.org . (That's another reason why I
keep my drafts at a personal web site, BTW).
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