Am 08.11.2012 21:40, schrieb Robert Cragie:
Just to be clear - using a /64 will not necessarily break a home
network with a LLN. It's just that some kludge will be needed and the
least preferable IMHO for LLNs is bridging.
Yes, I agree, and you can't force the LLN routers to be some high-end
routers able to do all the necessary magic to work around the problems
due to the assignment of a /64 from the ISP.
So I would suggest something like:
"The home network needs to be adaptable to such ISP policies, and thus
make no assumptions about the stability of the prefix received from an
ISP, or the length of the prefix that may be offered. However, if only
a /64 is offered by the ISP, the homenet may be severely constrained.
Attempting to use subnet prefixes longer than /64 would break SLAAC,
and is thus not recommended. Using ULA prefixes internally with NPTv6
at the boundary would be possible, but is not recommended for reasons
given elsewhere. Another solution would be for the internal routers to
revert to bridging mode, even though this would destroy the benefits
of subnetting and has serious limitations with regard to heterogeneous
link layer technologies and LLNs."
I prefer your text :-)
Mat
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