Michel,

If by PI you mean *globally routeable* PI, I am not holding my breath,
and I believe it would be a serious mistake to delay any decisions
while waiting for PI.

If you mean non-globally-routeable PI, Hinden/Haberman is a fine
solution.

   Brian

Michel Py wrote:
> 
> Brian,
> 
> > Brian E Carpenter
> > My bottom line on this, I think, is that this version
> > of scope has very limited use - it doesn't deal with the
> > situations that my services colleagues see every day,
> > and it is not something that middleware can make any use
> > of. At most, it allows for some defaults in firewall
> > rules and address selection rules, but those can be set
> > up on well-known prefixes just as easily as on a scope
> > value.
> 
> Although could agree with some of this, you are missing the point. This
> would be if we had a PI solution, which we don't. In the lack of it, the
> benefits of perverting the Hinden/Haberman draft into PI and do whatever
> works for private addresses (such as hijacking) are _greatly_ superior
> to using the Hinden/Haberman draft for private addresses and have no PI
> and no multihoming solution.
> 
> No matter how infortunate, it is scope that could lesser the risk of
> this happening, which is why making SLs unambiguous was possible, and
> also what makes the Hinden/Haberman draft such a peril as the only
> significant difference is that now these addresses have a global scope.
> 
> _IF_ we had a deployed solution that would bring the advantages of PI,
> _then_ the Hinden/Haberman draft would be a no-brainer.
> 
> I am not opposed to abolishing scope, but we need to solve the PI issue
> first. If it never crossed your mind, abolishing scope and slightly
> revamping SLs would make their deprecation un-necessary as all the
> problems associated with them would be gone.
> 
> Michel.

-- 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Brian E Carpenter 
Distinguished Engineer, Internet Standards & Technology, IBM 

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