Re: Transport multihoming

[RJ Atkinson <rja@extremenetworks.com>]

On Tuesday, Nov 5, 2002, at 11:37 America/Montreal, Pekka Nikander 
wrote:
> With separate spaces, *address* "ownership" is not
> much a problem in the sense it is in MIPv6, but *ID* "ownership"
> certainly is.
When the "address" is overloaded to have both identity and location
semantics, it inherits all the issues of both.  If there is separation,
then the issues are similarly separated -- the identity only has to
deal with identity issues and the location only has to deal with
location ("routing") issues.

> While RR (Return Routability) works, to a degree,
> with *address* ownership, it certainly doesn't work with *ID*
> ownership (that is, if IDs are separated from locators).
Given the known common presence of man-in-the-middle attacks,
I don't see that RR actually buys anything in the way
of trust or assurance that one is talking with the party
one thinks one is talking with.

Ran