When they do, they are violating the premises on which they received
their allocation. As such any ISP which is not willing to provide
a /48*
to an end-user should get their IPv6 allocation revoked by the RIR.
Could you please site chapter and verse? Here's what I can find:
http://www.arin.net/policy/nrpm.html#six54
6.5.4.1. Assignment address space size
End-users are assigned an end site assignment from their LIR or ISP.
The exact size of the assignment is a local decision for the LIR or
ISP to make, using a minimum value of a /64 (when only one subnet is
anticipated for the end site) up to the normal maximum of /48, except
in cases of extra large end sites where a larger assignment can be
justified.
ISPs should be charging based on *bandwidth usage* not on IP usage.
Sorry, ISPs charge based on providing a *service*. Yes, that
includes bandwidth (and generally flat bandwidth, not usage) and also
other components (DHCP, addressing, DNS, email, web hosting, spam
filtering, etc).
Tony
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