Ok, Ok, I probably haven't been paying attention, but... If a device implements a subset of IPv6, (e.g., no IPsec, no mobile IP), is it generally understood that this device "implements IPv6"? Has a standard subset of IPv6 been defined for very low-end devices that simply can't implement a full IPv6? As far as I can tell, we are at least informally moving towards IPv6-over-some-oddball-medium solutions that only implement a subset of IPv6, but it is not clear to me that they are always the same subset. It is also not clear to me whether this matters much. -tjs _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf