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Date:      Tue, 10 Sep 2002 20:38:33 -0600
From:      Tillman Hodgson <tillman@seekingfire.com>
To:        Dru <dlavigne6@cogeco.ca>
Cc:        Mike Tancsa <mike@sentex.net>, questions@FreeBSD.ORG
Subject:   Re: IPSEC & routing w/o gif
Message-ID:  <20020910203833.A4107@seekingfire.com>
In-Reply-To: <20020906180753.R164-100000@x1-6-00-80-c8-3a-b8-46.kico2.on.cogeco.ca>; from dlavigne6@cogeco.ca on Fri, Sep 06, 2002 at 06:09:43PM -0400
References:  <20020906155604.A15339@seekingfire.com> <20020906180753.R164-100000@x1-6-00-80-c8-3a-b8-46.kico2.on.cogeco.ca>

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On Fri, Sep 06, 2002 at 06:09:43PM -0400, Dru wrote:
> On Fri, 6 Sep 2002, Tillman Hodgson wrote:
> > Absolutely. Here's the relevent sections of the config files:
> 
> <snip>
> 
> Out of curiosity, why is your IKE SA shorter than your IPSEC SA? (that
> might be the problem). The IKE SA says how often the negotiated parameters
> are valid and is usually fairly long, say 24 hours. The IPSEC SA states
> how often the key changes which should be often, say every hour.
> 
> HTH,
> 
> Dru

That's a very good point, and it would explain what the problem is. It
sounds like the gateways are agreeing that everything is valid for X
minutes, but they won't renegotiate until X+Y minutes ... when X
expires, they're in a precarious state.

I'll try change to IKE: 24 hours and SA: 2 minutes for testing and see
how things go.

Thanks,

-T

-- 
You can have peace. Or you can have freedom. Don't ever count on having
both at once.
	Robert Heinlein

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