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Alejandro_Ferna
Explorer
‎2019-06-07 02:00 AM

Inspecting and detecting original source address of TCP NLB inbound traffic

Hello,

I have a AWS TCP Network Load Balancer with proxy protocol v2 enabled. This LB routes the traffic to a logical server IP with a group of internal web servers. The ports it use are 30080 and 30443, configured as TCP service with HTTP/S protocol but it seems that IPS are not inspecting this traffic.

Futhermore, I can see the real client IP address in the web server's log, so it seems proxy protocol are working, but in the Checkpoint log I only see the internal LB addresses so I can not differentiate between real traffic and LB health check traffic.

 

I appreciate any kind of suggestion or hint.

Thank you, regards!

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