At 08:33 PM 9/10/97 -0400, Sean M. Doran wrote:
... I decided to issue a warning that once the /8 that the InterNIC was using had filled up (and after some discussion, once RIPE and APNIC proceeded to allocate from new /8s), I would begin filtering all new unicast addresses to ignore Sprintward announcements of any prefix longer than 18 bits. Moreover, I also announced that I would filter out any subnets of historically classful As and Bs.
But you didn't actually do it then.
The warning was several months old when people started noticing that they couldn't reach things behind Sprintlink, and alot of time was spent explaining to people that this shouldn't have surprised them at all.
And the reason they started noticing it later was because only then did you actually implement the filters, without further notice, instead of much earlier. The surprise was due to the fact that you did it without further notice and not the fact that you did it. --Kent