IPv6 strange traffic reading?

IPv6 strange traffic reading?

  NetFlow Analyzer 9.0 showing some strange traffic reading, high amount of traffic and data. Bandwidth of network is 50000Kbps and on graphic it show speed of 1250000Kbps.

Device is Cisco ASA. When i look Source of traffic it show one IP address with high amount of data around 80GB and that address using IPv6 protocol and IPv6_App application. Maximum bandwidth of network is 50000Kbps and this high amount of data and speed is impossible to reach.

Why and what traffic can cause this high peaks on graphs?












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