TL>> There are arguments for more than a /64 for residential use. That TL>> allows for different subnets with different security profiles, such TL>> as for IoT, the car, whatever other network of smart devices you TL>> want. For many, I suspect a /60 would be sufficient. RM> Sure ... I agree. My reply was more from the ISP point of view. RM> With 1 v6 subnet it is easy, you just announce the subnet.
No: when you need to provide the customer with IPv6, you assign one fixed address for a link, and route a /64 subnet through that address.
Plastic routers (those sold for 20 EUR) deal with this setup just fine.
RM> If you allow more, you need a way to configure them. (eg. VLANs, RM> different subnet on different LAN port, etc.)
Or simply route more /64 subnets through that address. Or /56 at once.
RM> That is added complexity for a low cost product, where most of your RM> residential customers will have no clue what this is all about. So RM> it makes more sense to offer that on higher tier (and more expensive) RM> services.
That violates the KISS principle.
-- Alexey V. Vissarionov aka Gremlin from Kremlin gremlin.ru!gremlin; +vii-cmiii-ccxxix-lxxix-xlii
