Possible BGP hijack

Beginning at 2022-11-02 16:24:19 UTC, we detected a possible BGP hijack.

Prefix 214.51.42.0/24, is normally announced by AS27137 DNIC-ASBLK-27032-27159, US.

But beginning at 2022-11-02 16:24:19, the same prefix (214.51.42.0/24) was also announced by ASN 5231.

This was detected by 74 BGPMon peers.

Expected
Start time: 2022-11-02 16:24:19 UTC
Expected prefix: 214.51.42.0/24
Expected ASN: 27137 (DNIC-ASBLK-27032-27159, US)
Event Details
Detected advertisement: 214.51.42.0/24
Detected Origin ASN 5231 (DNIC-ASBLK-05120-05376, US)
Detected AS Path 29097 6830 3356 3910 721 27065 5231
Detected by number of BGPMon peers: 74

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