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Re: rekeying issues, was Re: FW: IPSec Monitoring MIB works for IPv4 only?



  I should've noted that a link to this draft has been added to the errata.
Thanks for bringing that up Tim.

  Dan.

On Mon, 23 Nov 1998 12:35:32 PST I wrote
>   Yea, you're right. I'm somewhat baffled by the re-keying issue. At
> the Raleigh bakeoff and at the Binghamton bakeoff there was quite a
> bit of re-keying done. In fact, in Raleigh there was a 6 or 7 vendor
> mesh (each had 5 or 6 peers) with re-keying every 5 minutes or so. This
> went on for a couple of hours until people got distracted and tore 
> their node down to do other things.
> 
>   In Binghamton I did re-keying with a few vendors (like 4, I'd have
> to check my notes) and as far as I know none did what was proposed
> in draft-jenkins-ipsec-rekeying-00.txt and, from my brief discussions
> with 2 of the implementors I successfully rekeyed with, we did things
> subtly different and it still worked. The draft mentions quite a
> bit of conditional state that must be maintained, like creating but
> not using outbound SAs until traffic is received on the inbound SA,
> that is difficult to maintain and also might have its own issues.
> 
>   Perhaps if the vendors who've exhibited successful rekeying (I can
> think of SSH, TimeStep, Checkpoint, Cisco, Radguard, Network Alchemy, IRE, 
> TIS off the top of my head, but that is not meant to be a complete list
> and I apologise in advance if I didn't mention anyone with whom I did
> successfully re-key) just documented what they do this might cease to
> be an issue.
> 
>   Dan.
> 
> On Mon, 23 Nov 1998 14:21:50 EST you wrote
> > The re-keying issues aren't there.
> > 
> > For my opinions on that see
> > <ftp://ftp.ietf.org/internet-drafts/draft-jenkins-ipsec-rekeying-00.txt>.
> > 
> > This document also expresses our concerns with the delete notification and
> > its use.
> > 
> > I will be updating this (sometime) to reflect the view that there should be
> > more than one phase 1 SA allowed between peers.



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