[EMAIL PROTECTED] wrote:

> 
> 
> The bis-05 draft adds Proxy-Require and Proxy-
> Authorization headers to the headers that are
> required for Via branch computation in order to
> detect loops and allow spirals. (line 2198)
> 
> This has been added since these headers can
> influence routing decisions. But then, will
> Proxy-Require and Proxy-Authorization headers
> be inserted/modified by intermediate elements
> when a request spirals back to a proxy ?


Proxy-Require could possibly be modified.
Proxy-Authorization for that proxy probably won't,
but the proxy itself will strip it out.



> I guess Proxy-Authorization headers will only
> get stripped when a Proxy "comsumes" the header
> meant for it. 


Right.

> How will this type of a change
> affect the routing decision ?


The proxy might challenge requests that have no proxy-authorization 
header in it. Thus, its not so much "routing" as general processing.

-Jonathan R.




-- 
Jonathan D. Rosenberg, Ph.D.            72 Eagle Rock Avenue
Chief Scientist                         First Floor
dynamicsoft                             East Hanover, NJ 07936
[EMAIL PROTECTED]                 FAX: (973) 952-5050
http://www.jdrosen.net                  PH:  (973) 952-5000
http://www.dynamicsoft.com

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