* Steven M. Bellovin: > As Randy and Valdis have pointed out, if this isn't done very carefully > it's an open invitation to a new, very effective DoS technique. You > can't do this without authoritative knowledge of exactly who owns any > prefix; you also have to be able to authenticate the request to > blackhole it. Those two points are *hard*.
If you want to run a public exchange point, you need to solve the same announcement validation problem. Multiple organizations appear to do it successfully, so it can't be that difficult.
