> -----Original Message-----
> From: james jack [mailto:[EMAIL PROTECTED]]
> Sent: Friday, April 27, 2001 12:41 AM
> To: [EMAIL PROTECTED]
> Subject: [Sip-implementors] Consultation on Via in response
> 
> 
> Dear all:
>     According to 6.46.3 Responses in RFC2543bis02(page
> 58, PDF format ), which says:
> " The first Via header field should indicate the proxy
> or client processing this response. If it does not,
> discard the message. Otherwise, remove this Via
> field."
>     Since Via may have "received "tag, if it has
> "received" tag, when realizing the foregoing
> paragraph, It should use the host in "received " tag
> for comparison. This is my understanding. Is that
> ture?

No. The received tag is inserted by the next hop. Your own
proxy doesn't know what this will be (especially if there is a 
nat between). The comparison is made only using what your own
proxy inserted, which is the sent-by field of the via header.

-Jonathan R.


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

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