Re: URI comparison rules - IPv6 addresses

Hi,

it is not really a bug. It is a clarification.

Cheers,

Gonzalo

DRAGE, Keith (Keith) wrote:
> Whatever the merits of this, please do not suggest
using a SIPPING document to change the SIP protocol. We are
getting too many of these odd updates spread around in too
many documents. If this really is a bug in RFC 3261, then
use the essential corrections process we are working on to
change this.
> 
> Regards
> 
> Keith
> 
>> -----Original Message-----
>> From: Gonzalo Camarillo
[mailto:Gonzalo.Camarilloericsson.com] 
>> Sent: Wednesday, November 21, 2007 9:17 AM
>> To: sip
>> Cc: Brett Tate
>> Subject: [Sip] URI comparison rules - IPv6
addresses
>>
>> Hi,
>>
>> Brett brought this up in the SIP Implementors
mailing list. 
>> The following IPv6 addresses are supposed to be
equivalent:
>>
>> [::ffff:192.0.2.128] and [::ffff:c000:280]
[2001:db8::9:1] 
>> and [2001:db8::9:01] [0:0:0:0:0:FFFF:129.144.52.38]
and 
>> [::FFFF:129.144.52.38]
>>
>> Now, let's say I need to compare 
>> sip:user1[::ffff:192.0.2.128] and 
>> sip:user1[::ffff:c000:280]. Should we consider
these URIs to 
>> be equivalent or not?
>>
>> My proposal is that we clarify that IPv6 address
comparison 
>> happens at the binary level, not at the textual
level. We 
>> could log a bug against RFC3261, and try and add
such a 
>> clarification to the IPv6 transition document (I
will need to 
>> ask the ADs whether or not we can add this in
AUTH48).
>>
>> Cheers,
>>
>> Gonzalo
>>
>>
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>>



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