I've heard and seen those filters a few years ago. In this particular case, I've seen a bunch of other /24s (from remote ASs) on the looking glasses. Looks like filters are base on other criteria on top of prefix length and I wonder which criterion this /24 falls into. --- "Christopher L. Morrow" <christopher.morrow@mci.com> wrote:
On Wed, 19 Oct 2005, Kyaw Khine wrote:
I've contacted both ISPs and they both claimed they are announcing our /24 to the rest of the world, without manipulation.
What am I missing here?
some providers (for whatever reason, not really relevant to this conversation) do filter at boundaries NOT /24 :( Some filter /20 or /22 or other odd-ball boundaries.
-Chris
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