Possible BGP hijack

Beginning at 2017-03-07 19:34:07 UTC, we detected a possible BGP hijack.

Prefix 157.84.56.0/21, is normally announced by AS6900 Hewlett Packard GmbH.

But beginning at 2017-03-07 19:34:07, the same prefix (157.84.56.0/21) was also announced by ASN 2830.

This was detected by 167 BGPMon peers.

Expected
Start time: 2017-03-07 19:34:07 UTC
Expected prefix: 157.84.56.0/21
Expected ASN: 6900 (Hewlett Packard GmbH)
Event Details
Detected advertisement: 157.84.56.0/21
Detected Origin ASN 2830 (Verizon Nederland B.V.)
Detected AS Path 25605 3257 702 2830
Detected by number of BGPMon peers: 167

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