Hi We blocked some prefixes belonging to AS14037 (rackvibe llc) due to their hosting spammers. Rackvibe decided to nullroute us back in reply - thats up to them I guess Only they're dumb enough to inject these blackhole announcements into the cloud, and various other networks are picking up on these announcements TIA for filtering these out at your end Our IPs are below - at least 208.36.123/24 seems to be announced as a blackhole route by rackvibe - 205.158.62.0/24 208.36.123.0/24 203.86.166.0/24 65.49.50.0/24 65.49.50.0/24 64.71.166.192/27 64.62.181.80/28 srs Paths: (7 available, best #7, table Default-IP-Routing-Table) Not advertised to any peer 16150 6939 19318 14037 217.75.96.60 from 217.75.96.60 (217.75.96.60) Origin IGP, metric 0, localpref 100, valid, external Community: 16150:63392 16150:65320 16150:65426 3333 1103 1273 19318 14037 193.0.0.56 from 193.0.0.56 (193.0.0.56) Origin IGP, localpref 100, valid, external Community: 1103:1000 1273:21000 1273:21971 14037:6855 19318:999 19318:4000 19318:6855 19318:40012 21698:999 21698:4000 21698:6855 3277 3216 1273 19318 14037 194.85.4.55 from 194.85.4.55 (194.85.4.16) Origin IGP, localpref 100, valid, external Community: 1273:21000 1273:21971 3216:3000 3216:3001 3277:3216 14037:6855 19318:999 19318:4000 19318:6855 19318:40012 21698:999 21698:4000 21698:6855 812 19318 14037