RE: [RRG] Comments on draft-lewis-lisp-interworking

["Tony Li" <tony.li@tony.li>]

Hi Dino,


|No, I disagree. It has to keep a single set of filters, and that is  
|based on the source address leaving the site. That can be the 1)  
|source host's address, 2) the ITR's RLOC addres, or 3) a translated  
|address. In all cases, they are out of the attached provider block.


That would seem to be inconsistent.  As you've previously said, when
operating with a PTR, the source address coming out of the LISP site would
be a pure EID.  That is necessarily not part of the provider block.


|There is no choice here, we have to do this. And if we don't accept  
|it, nothing will come close to getting deployed. So we have to try to  
|make it work as simplest as we can.


No, this is also not true.  There is a clear alternative: tunnel from the
ITR back out to the PTR.  

FWIW, I don't like that either, but we should consider the alternatives.

Tony


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