... but it seems to be prudent to adopt a /8 filter on most of the old class A space and a /16 filter on the old class B space. Other than the need to update these filters as the former class A space is subdivided I can see no major downside.
What about the cable providers that have chunks of 24/8?
That's one of the reasons that I said "most of" the old Class A space. And since there will be continued carving up of blocks in the Class A space those filters will need to be revisited from time to time. ******************************************************** Michael Dillon voice: +1-650-482-2840 Senior Systems Architect fax: +1-650-482-2844 PRIORI NETWORKS, INC. http://www.priori.net "The People You Know. The People You Trust." ********************************************************