Capture TLS version

Hello,

You can get stats, directly from your VS by clicking on "Statistics", then choose the "clientssl" profile from "Profiles". Then you can find all SSL protocol used by your clients.

If you need real time log, you can use the [SSL::cipher version] from your irule.

Check this links :

• https://devcentral.f5.com/wiki/irules.ssl__cipher.ashx

• https://devcentral.f5.com/questions/need-irule-to-redirect-tls-10-traffic-to-maintenance-page-54835answer148005

Finally, you can also check what protocols are allowed by your VS. If the client/server SSL Profile used by the VS uses the "DEFAULT" cipher list, you can print the allowed TLS protocol and cipher of your VS using :

tmm --clientciphers DEFAULT

• https://support.f5.com/csp/article/K13156

Hope it helps,

Regards