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Brandon
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Mar 22, 2019

LTM LogConnection error: ssl_null_parse:3167: record length too large (22)

Has anybody seen this issue?

 

Running 13.1.0.7 Log Level Warning Connection error: ssl_null_parse:3167: record length too large (22)

 

I found this article but it doesnt apply to 13.1.0.7 K17088: Increasing the size of the SSL handshake buffer

 

This is the size of my buffer below: list sys db tmm.ssl.maxhandshakesize sys db tmm.ssl.maxhandshakesize { value "32768"

 

4 Replies

  • Looks to be a simple change. I have done it without any concerns. I would double check to make sure you aren't using high (more than 50%) of resources (memory mainly) on the F5 before enabling it.

  • Having same issue, same version. Changing the handshake buffer had no effect. I reverted the change. Still looking for an answer.

    Connection error: ssl_null_parse:3167: record length too large (22)

  • I opened a ticket with F5 Support. One of our VIPs had a server side ssl profile "serverssl-insecure-compatible".

     

    I remove the profile

     

    We have this virtual server using "serverssl-insecure-compatible"

    https://support.f5.com/csp/article/K13214

     

    Support Engineer also added

    "The following table lists the ciphers used in the serverssl-insecure-compatible SSL profile in BIG-IP 13.0.0 - 13.1.0"

     

    Adding "!DHE:!ECDHE:" may prevent those messages from happening.

     

  • I'm facing the same issue after upgrade to 13.1.1.5.

    What SSL profile and cipher did you associate to the virtual server?

    Could you share this information?

    Thank you .