split b

[Andy Dills]

On Mon, 5 Jun 2000, Kim Hubbard wrote:

> I'm personally looking at this differently.  If organizations want their
> Class B's split in our database knowing they may be filtered than that's
> their business.  As Randy said, the organizations in question agreed to
> work out the specifics so filtering wasn't suppose to be an issue for them.
> I don't necessarily believe that we should (based on this one instance)
> move to make a formal policy change wherin ISPs would feel compelled to
> change their filtering policies....again.

I understand the historical reasons for filtering routers based on prefix
and prefix length, but I can't figure out why this is still a common
practice. I'm not even convinced it is a common practice any more.

So, why would it be in a network's best interest to filter based on
prefix/prefix length?

Andy

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