We've seen more traffic pass over our WAN3 interface than usual. WAN3 is an Internet browsing only interface. I do a packet capture on the Interface and see several entries like the one below. Many seem to be from akamaitechnologies.com. I understand the many use Akamai to move files but I have my suspicions.
Can someone tell me exactly what this entry reads:
11:59:25.404911 IP 188.8.131.52.80 > 184.108.40.206.55405: tcp 1452
The 108.x.x.x address is our WAN3 interface. But, I've seen several entries where the from or to was en external IP. Also, I've seen 1452 references to this: GTE Government Systems LM. What exactly is this?
A client on your network is pulling something from 220.127.116.11 via HTTP. That's an Akamai IP, which is a CDN used by a bunch of companies to host their downloads. Best that shows is someone is downloading something. Filter states for the external IP to find the internal host.