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ISAKMP cookies

To: wdmaugh@tycho.ncsc.mil
Subject: ISAKMP cookies
From: "Angelos D. Keromytis" <angelos@dsl.cis.upenn.edu>
Date: Sun, 18 May 1997 10:34:08 -0400
Cc: mss@tycho.ncsc.mil, sjt@epoch.ncsc.mil, mjs@terisa.com, ipsec@tis.com
Sender: owner-ipsec@ex.tis.com

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Could we remove the wording from the draft that talks about clogging
and how cookies prevent it ? Clearly, in ISAKMP, cookies do nothing of
that sort; the Responder has to create state after receiving the
first message of a Main or Aggressive Mode, to keep the
proposal/transforms/attributes it's decided to accept. On the other
hand, if we do want to do anti-clogging, a simple HDR exchange before
the current Main/Aggressive Mode would suffice.
Cheers,
- -Angelos

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