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IPSec Main mode 4653 Audit failure from IP addresss : Akamai and Microsoft Internet Data Center

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I am updating my security log settings and testing some of the Advanced Logging features.

I have IPsec NPS on the network, so I am interested in any IPsec failures.

On my domain controllers I am getting lots of 4653 events:

The ones I am interested in are from IP addresses outside my network:

213.254.249.15, Microsoft Internet Data Center

95.100.255.62, AKAMAI-PA

84.53.139.66, AKAMAI-PA

88.221.212.79

213.254.249.15

72.21.80.5 etc

Can anyone enlighten me as to what these are?

I have other events which I understand

- some are misconfigured IPv6 local events

- some are from a new computer


CarolChi


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