Is it time to abandon bogon prefix filters?

Randy Bush randy at
Wed Aug 6 10:01:06 CDT 2008

> Until all transit networks are willing to strictly filter their
> downstreams (and themselves!), if there is any unused space (note I said
> "unused", not "unallocated"), the miscreants will use it.

serious curiosity:

what is the proportion of bad stuff coming from unallocated space vs
allocated space?  real measurements, please.  and are there longitudinal
data on this?

are the uw folk, gatech, vern, ... measuring?


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