[rrg] [lisp] Economic issues of long-path / stretched routing

[Noel Chiappa]

    > From: HeinerHummel at aol.com

    > Why LISP 1.5=20?  Why not LISP 2 ? or directly:
    > Why doesn't the ITR intercept and enhance the DNS lookup as to also request
    > the eRLOC address in addition to the dest IP address? It can also
    > intercept the respective response and store (EID, eRLOC).

I don't know what the thinking of other people working on LISP is, but I can
give you my thoughts on this point.

Simply put, I don't like designs which _invisibly, outside the host_ tie into
the DNS because it takes two separate subsystems (DNS resolution, and basic
packet forwarding), and tangles them together, which is bad engineering for a
number of reasons (makes it harder to make further changes, creates more
mutual dependencies, increases overall fragility/brittleness, etc).

Some NAT variants do this too, and I especially didn't like them either! :-)

        Noel