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Srikar's avatar
Srikar
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Jan 08, 2021

webpage not loading with http profile

I have a VIP configured with service port 8444 and pool members are configured with port 8444. When i add http profile to the VIP, web page is not loading. It's working without http profile and there are no SSL profiles attached to VIP. Trying to understand the concept. if we do packet captures how to recognize these configurations errors?

 

In my case tcp handshake happening, TLS handshake happening and after that I'm getting FIN, ACK from server and Resets after that.

 

Thank you!!

  • Your traffic is ssl traffic. You shouldn't apply a http profile without offloading the traffic.

     

    To help this understand, when you send the traffic over secure (https - your vip is on port 8444), the ltm needs to know what traffic its receiving and process it accordingly. When you apply http profile, it is expecting a http traffic and can process only http functionalities. But without offloading it on the ltm, its still a https traffic. So flow breaks, to avoid this, you can offload it first using a clientssl profile and then inspect the layer 7 attributes with http profile.

     

    So when you remove it, its acting as a passthrough. When you apply it, it's acting as l7 traffic.

2 Replies

  • Your traffic is ssl traffic. You shouldn't apply a http profile without offloading the traffic.

     

    To help this understand, when you send the traffic over secure (https - your vip is on port 8444), the ltm needs to know what traffic its receiving and process it accordingly. When you apply http profile, it is expecting a http traffic and can process only http functionalities. But without offloading it on the ltm, its still a https traffic. So flow breaks, to avoid this, you can offload it first using a clientssl profile and then inspect the layer 7 attributes with http profile.

     

    So when you remove it, its acting as a passthrough. When you apply it, it's acting as l7 traffic.

    • Srikar's avatar
      Srikar
      Icon for Altostratus rankAltostratus

      Got it. Thank your for the explanation