Date: Mon, 20 Oct 2014 09:25:28 +0200 From: Matthias Apitz <guru@unixarea.de> To: freebsd-current@freebsd.org Subject: FreeBSD && TCP stealth Message-ID: <20141020072528.GA1748@unixarea.DDR.dd>
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Hello, Is there any work started or in progress to implement TCP stealth in our kernel as proposed to IETF in https://datatracker.ietf.org/doc/draft-kirsch-ietf-tcp-stealth/ The idea is that the client put some magic value in the ISN of the first SYN pkg which is derived from a secret the client and the server share. The server can check the ISN and decide if it will answer the SYN pkg or do a RST, for example. Vy 73 matthias -- Matthias Apitz | /"\ ASCII Ribbon Campaign: E-mail: guru@unixarea.de | \ / - No HTML/RTF in E-mail WWW: http://www.unixarea.de/ | X - No proprietary attachments phone: +49-170-4527211 | / \ - Respect for open standards | en.wikipedia.org/wiki/ASCII_Ribbon_Campaign
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