Observing traffic from AWS VPC to Cisco FMC .How to identify if it is genuine?

[niravgunjan]

I am observing frequent traffic from AWS cloud and Internet Public IPs towards my FMC .How can i check if it is genuine or not?

[Claudiu Cismaru]

What kind of traffic? What ports. Is it initiated by the FMC or initiated from outside? Give us more details.

[niravgunjan]

Thankyou Claudiu for your response.Traffic is generated from outside .

Source Port is always 443 and destination is FMC IP on random ports 

52.87.147.151(443) -> FMC IP(36860)

[Claudiu Cismaru]

Where did you see this traffic? In FMC? Is this passing through your sensor? Or in another tool?

[niravgunjan]

IT is in my perimeter firewall.