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

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Akash_549's avatar
Akash_549
Icon for Nimbostratus rankNimbostratus
Jul 26, 2012

SSL passthrough

Hello, I want to load balance (least connection) SSL traffic terminating straight on the server. I was looking into something called 'SSL-passthrough' but can not understand how it will exactly carr...
app sec
BIG-IP Access Policy Manager (APM)
security
What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
Nov 05, 2012
Santosh is correct. The 'passthrough' just refers to the fact the SSL is passed through the device to the servers, not terminated on the F5. Note that this means you cannot apply iRules, compression and a host of other features and you also lose some flexibility with persistence. In my experience, it's normally worth the time to terminate on the F5 and re-encrypt to the server (if it must be SSL end to end) so you get all of the benefits of LTM but maintain your security.