For one thing a /32 is nowhere near enough for anything bigger than a modest ISP today. Many will need /28, /24, or even larger. The biggest ones probably need /16 or even /12 in some cases.
Owen On Jul 14, 2015, at 12:53, John R. Levine <jo...@iecc.com> wrote: >> We're talking about end user assignments made by ISPs, not ISP assignments. >> An ISP's /32 is likely the only entry one needs in the FIB. > > In that case, why should anyone care how the ISP assigns space to its > customers? > > R's, > John
