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Re: WGLC: draft-ietf-appsawg-http-forwarded-02.txt

Peter Lepeska <bizzbyster@gmail.com> Fri, 04 May 2012 21:13 UTC

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Date: Fri, 04 May 2012 16:15:52 -0400
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From: Peter Lepeska <bizzbyster@gmail.com>
To: Andreas Petersson <andreas@sbin.se>
Cc: ietf-http-wg@w3.org
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Subject: Re: WGLC: draft-ietf-appsawg-http-forwarded-02.txt
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Resent-Date: Fri, 04 May 2012 21:12:05 +0000

I can think of an enterprise use case but it's pretty contrived. WAN
optimizing appliances use the TCP option field to auto-negotiate optimized
connections when appliances are present in the data path. See
http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/WAASDC11.html
.

Should there be an HTTP proxy in between those optimizing appliances, the
TCP option field would be lost along with the original client source IP
address and port. However, if this information was included in the HTTP GET
Headers then the functionality could in theory be preserved.

I know it's a stretch.

Peter

On Fri, May 4, 2012 at 12:36 PM, Andreas Petersson <andreas@sbin.se> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 5/4/12 6:06 PM, Peter Lepeska wrote:
> > I wonder if the forwarded information should also include TCP
> > header options (
> > http://www.networksorcery.com/enp/protocol/tcp.htm#Option
> > <http://www.networksorcery.com/enp/protocol/tcp.htm#Options>s)
> > based on the TCP connection carrying the original GET request.
> >
> > Peter
>
> Can you provide a use case?
>
> /andreas
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