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List:       ipng
Subject:    RE: Node Requirements and 3041
From:       john.loughney () nokia ! com
Date:       2003-01-31 14:27:15
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Hi Alain,

Good points. I will try to craft text to cover this & I will send it to the list.

br,
John

> -----Original Message-----
> From: ext Alain Durand [mailto:Alain.Durand@Sun.COM]
> Sent: 29 January, 2003 19:26
> To: Loughney John (NRC/Helsinki)
> Cc: brian@hursley.ibm.com; Francis.Dupont@enst-bretagne.fr;
> ipng@sunroof.eng.sun.com
> Subject: Re: Node Requirements and 3041
> 
> 
> 
> On Tuesday, January 28, 2003, at 05:44 PM, john.loughney@nokia.com 
> wrote:
> >
> >    Privacy Extensions for Stateless Address Autoconfiguration 
> > [RFC-3041]
> >    SHOULD be supported.  It is recommended that node behavior be 
> > configurable
> >    when they are available.
> 
> There is a catch to this last sentence.
> Using RFC3041-type addresses is IMHO not a property of node,
> not a property of user context, and not even a property of 
> applications.
> This is a property of the specific connections within each 
> application.
> 
> There are a number of things that are known not to work when 
> RFC3041-type
> addresses are in use, e.g. rlogin with the weak security provided by 
> .rhost files,
> anti-spam filters on some mail relays, reverse DNS, etc... On 
> the other 
> hand,
> masking the mac address has some good properties for some apps.
> 
> So, having a configuration knob that is node-wide, user-wide or even
> application-wide is too large, as a complex application may use
> several connections, and RFC3041-type addresses may be fine for
> some but damaging for others.
> 
> So it seems to me that the sensible way to go is to have a 
> socket option
> that application developers can use on a per socket basis.
> 
> I think some of this discussion should be capture in the node 
> requirement document.
> 
> 	- Alain.
> 
> 

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