netdev - Internet-Draft on Port Randomisation

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Date:	Tue, 9 Sep 2008 12:07:10 +0800
From:	"Eugene Teo" <eugeneteo@...nel.sg>
To:	netdev@...r.kernel.org
Cc:	"Eugene Teo" <eteo@...hat.com>
Subject: Internet-Draft on Port Randomisation

Has anyone read this Internet-Draft?
http://www.gont.com.ar/drafts/port-randomization/draft-ietf-tsvwg-port-randomization-02.txt

In this memo, there are descriptions of four different ephemeral port
randomisation algorithms (see page 17).

Algo #1 and #2 are simple port randomisation algorithms. Algo #3 is
what we have in Linux. The memo suggested algorithm #4, double-hash
randomisation algorithm, which is an improvement to algo #3 (see page
15).

Does anyone have any thought about the improved algorithm? Is this
worth implementing, given the possible additional overhead that it
has?

Thanks, Eugene
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