v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space

Joe Abley jabley at hopcount.ca
Thu Feb 5 19:06:16 UTC 2009

On 5-Feb-2009, at 06:34, Christopher Morrow wrote:

> to be fair, there are 3 options for multihoming today in v6 (three
> sanctioned by the IETF, not ordered in any order, not including
> discussion about goodness/badness/oh-god-no-ness of these)
> 1) multiple addresses on each device, one per provider
> 2) shim-6
> 3) HIP (still in development, as I recall)

4) Obtain PA space and do what you're doing with v4.

5) Obtain PI space and do what you're doing with v4.

(4) is problematic because filtering long prefixes in v6 seems to be  
more energetic than it is in v4. (5) is problematic if you don't  
qualify for PI space.

(For completeness.)


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