filtering /48 is going to be necessary

Jimmy Hess mysidia at
Sat Mar 10 08:08:15 CST 2012

On Sat, Mar 10, 2012 at 12:52 AM, George Bonser <gbonser at> wrote:
>> I'm well into my second decade of having a v6 prefix in the dfz and am
>> passingly familiar with powers of two...
> Point is that expecting people globally to take a /48 from PA space probably isn't a realistic expectation.

What's more realistic is you have to get a single /48 of PI space for
people to carry that globally.

And if you have 5 discontiguous networks, what the RIRs should do is
carve a /44 out for your
present and future PI allocations   and issue you    the  8  /48s;
the PI /48 routing slots
that you have justified need for --  arranged so that they fall within
the same /45.


More information about the NANOG mailing list