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List:       sip-implementors
Subject:    [Sip-implementors] RE: [IETF-SIN] SIP URL Comparison
From:       Jonathan Rosenberg <jdrosen () dynamicsoft ! com>
Date:       2001-06-27 6:28:58
Message-ID: B65B4F8437968F488A01A940B21982BF0128C77A () DYN-EXCH-001 ! dynamicsoft ! com
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Basic SIP questions belong on sip-implementors. ietf-sin is for the design
team looking at IN/SIP convergence.

Answer below.

> -----Original Message-----
> From: Tushar Kanti Ray [mailto:tushar.ray@cofuture.com]
> Sent: Wednesday, June 27, 2001 12:02 AM
> To: ietf-sin@lists.bell-labs.com
> Subject: [IETF-SIN] SIP URL Comparison
> 
> 
>  Hi
>  I am Tushar .
>  I just started working in SIP ,before the implementation of the SIP
> protocol
>  I was
>  going through the RFC-2543 and found difficulty in understanding a
>  particular
>  portion of the material.
>  In page 22 of RFC-2543 there is a point on the SIP comparison
>  
>  An IP address that is the result of a DNS lookup of a host 
> name does not
>  match the host name.
>  
>  Please I want a detail on this.

This means that:

sip:jdrosen@dynamicsoft.com
sip:jdrosen@216.173.40.55

are NOT equal, even though a lookup of dynamicsoft.com yields 216.173.40.55.

-Jonathan R.

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

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