RE: Comments on draft-nordmark-multi6-threats-01

["Fleischman, Eric" <eric.fleischman@boeing.com>]

Erik,

>      identifier  - an IP layer identifier for an IP layer endpoint
>                    (stack name in [NSRG]).  <snip>

I am bothered by this definition. The way I read it, it implies that an IP layer endpoint is the protocol stack. That is true of every protocol system that I know (including OSI) except for the Internet protocol suite. For the Internet protocol suite, the IP layer endpoint is a network interface. 

Here is where the difference is manifest: for OSI and other protocols with a NSAP (network service access point -- i.e., a stack interface at the network layer), every network interface on that device has the same network layer address. However, for the Internet protocol suite, every network interface has a different IP address. This is why you need to eliminate the text "(stack name in [NSRG])" from your definition.

BTW: has multi6 actually considered redefining IP addresses to actually become stack interfaces at the IP layer? If you have, I think that you may agree with me that most/many of the *node* multihoming problems go away.

--Eric