Possible BGP hijack

Beginning at 2019-09-24 21:39:30 UTC, we detected a possible BGP hijack.

Prefix 217.12.111.0/24, is normally announced by AS15632 ALFA-BANK-AS, RU.

But beginning at 2019-09-24 21:39:30, the same prefix (217.12.111.0/24) was also announced by ASN 5511.

This was detected by 167 BGPMon peers.

Expected
Start time: 2019-09-24 21:39:30 UTC
Expected prefix: 217.12.111.0/24
Expected ASN: 15632 (ALFA-BANK-AS, RU)
Event Details
Detected advertisement: 217.12.111.0/24
Detected Origin ASN 5511 (OPENTRANSIT, FR)
Detected AS Path 49463 174 5511
Detected by number of BGPMon peers: 167

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