netdev - Re: [PATCH 1/1]: SAs created although tmpl->optional set

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Message-Id: <200711200515.lAK5FIuO012350@faith.austin.ibm.com>
Date:	Mon, 19 Nov 2007 23:15:18 -0600
From:	Joy Latten <latten@...tin.ibm.com>
To:	herbert@...dor.apana.org.au
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH 1/1]: SAs created although tmpl->optional set

>Heh I made the same mistake when I first read this piece of
>code too :) The optional flag isn't saying that it doesn't need
>to be protected, but rather that the SA may not be present on
>input.  It's only used for IPComp where we may skip the IPComp
>if the data is not compressible.
>
>In other words the optional flag is really only meaningful on
>inbuond policy checks.

Thanks for clearing that up for me. :-) 
I think it is not documented clearly in ipsec-tools.

Joy
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