RE: IPSEC target and transport mode

[Black_David@emc.com]

Jason,

Would you settle for a sentence describing the performance
advantages of transport mode and using a lower-case "should"
to recommend that transport mode be implemented when these
advantages are desired/considered important?  My concern is
that I can't see my way to justifying an upper-case SHOULD
based on "interoperation or to limit behavior which has
potential for causing harm" (see RFC 2119, Section 6).

Thanks,
--David

> -----Original Message-----
> From: Jason R Thorpe [mailto:thorpej@wasabisystems.com]
> Sent: Wednesday, April 03, 2002 2:11 PM
> To: Black_David@emc.com
> Cc: ips@ece.cmu.edu
> Subject: Re: IPSEC target and transport mode
> 
> 
> On Wed, Apr 03, 2002 at 12:54:51PM -0500, Black_David@emc.com wrote:
> 
>  > Between this and other discussion on the list, I believe that
>  > the IPS WG has rough consensus for tunnel mode as "MUST implement"
>  > and transport mode as "MAY implement".
> 
> Err... does this address the performance concern?  For performance
> reasons, I would suggest a "SHOULD implement" for transport.  (Err,
> there is a SHOULD, right?  Anyway, "you may do it, and you really
> ought to, but you don't have to" is that I'm trying to get across.)
> 
> -- 
>         -- Jason R. Thorpe <thorpej@wasabisystems.com>
>