Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

neeeewbie's avatar
neeeewbie
Icon for MVP rankMVP
2 months ago

SSL cipher

Hi guys    TLS is weird. Why is this behavior happening?   The server that receives the client hello sends an alert. Transport Layer Security     TLSv1.2 Record Layer: Handshake Protocol...
application delivery
security
neeeewbie's avatar
neeeewbie
Icon for MVP rankMVP
2 months ago

Thank you.

We confirmed that loading the device configuration works, but verifying does not.

We are investigating this issue further.

Thank you for your help.

  • Kerry's avatar
    Kerry
    Icon for Cirrus rankCirrus
    2 months ago

    You have a health monitor running?   unless you define an SSL profile on it, it will users the default.  Also, if more than on server SSL profiles on the VS (i.e. you using SNI)  the F5 can select the wrong profiles an a irules need to fix that.