BCP: Slicing a /32 for an ISP

Gert Doering gert at space.net
Mon Apr 14 15:53:05 CEST 2008


On Mon, Apr 14, 2008 at 03:39:14PM +0200, Jeroen Massar wrote:
> It would be really awesome if people who request a /32 actually did 
> their work properly and calculated how much space they really need.

We did.  We wanted a lot and got a /35.  Bah.  Took me years to change
this into a /32... :-)

In general, I agree with Jeroen, but it's not *that* easy.  Most of the
smaller ISPs in Europe will not have more than 30k customers in the
near future - and thus won't be able to justify anything bigger than
a /32 anyway.  Those that *do* have more than 30k customers usually
know, and get bigger network blocks, right away (just saw a /26 go to

Gert Doering
        -- NetMaster
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