nanog mailing list archives

Re: Using IPv6 with prefixes shorter than a /64 on a LAN


From: Owen DeLong <owen () delong com>
Date: Tue, 1 Feb 2011 18:27:47 -0800


On Feb 1, 2011, at 5:37 PM, Bill Stewart wrote:

On 2/1/11, Chuck Anderson <cra () wpi edu> wrote:
What would your recommended solution be then for disconnected
networks?  Every home user and enterprise user requests GUA directly
from their RIR/NIR/LIR at a cost of hunderds of dollars per year or
more?

A typical home user will have a /56 of GUA, or maybe a /48 with some
ISPs.  Anybody who knows enough to figure out how to set a ULA can
figure out a /64 from their GUA space that's not being auto-assigned
by one of their various home routers.  So if that's the way you want
to do things, it won't cost you or your ISP anything.

If your ISP is only assigning you a /64 of GUA, that's another story.

If your ISP assigns you less than a  /48, ask them to fix it.

If they refuse, get a new ISP or use that ISP to connect a tunnel
to someone who will give you a /48.

Owen



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