Possible BGP hijack

Beginning at 2018-08-07 17:56:47 UTC, we detected a possible BGP hijack.

Prefix 2a0b:d540::/32, is normally announced by AS42291 OOO Istranet.

But beginning at 2018-08-07 17:56:47, the same prefix (2a0b:d540::/32) was also announced by ASN 5406.

This was detected by 3 BGPMon peers.

Expected
Start time: 2018-08-07 17:56:47 UTC
Expected prefix: 2a0b:d540::/32
Expected ASN: 42291 (OOO Istranet)
Event Details
Detected advertisement: 2a0b:d540::/32
Detected Origin ASN 5406 (Unknown)
Detected AS Path 1103 5406
Detected by number of BGPMon peers: 3

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