On Feb 16, 2021, at 8:37 AM, Gert Doering <[email protected]> wrote: > Not sure what of that is "of course" and what "routes to the IoT network" > might be…
Router Advertisements advertise routers, prefixes, and routes, among other things. They can advertise a default router (and hence a default route), or they can advertise a non-default router that provides more specific routes, for example to an IoT stub network. Unless you prefer that we just bridge constrained networks to Wifi or Ethernet infrastructure networks at layer 2? See https://tools.ietf.org/html/draft-lemon-stub-networks-ps-00 (update coming soon) FWIW, the situation for IoT (stub) networks is no different than the situation for multi-homing: you have two routers connected to the same link, both multicasting RAs to the link. Which one do you want your network infrastructure to automatically filter?
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