Need SSL connection Between client and F5

You can follow this procedure http://support.f5.com/kb/en-us/solutions/public/14000/500/sol14534.html?sr=39703881one

or directly generate a CSR on the web interface of your BIG-IP : System ›› File Management : SSL Certificate List

You create a new SSL Certificate and make sure you select Certificate Authority in the issuer field.

Then you can download the CSR and send it to your CA Manager that will sign it.

Once you have the final certificate, you have to import it within your previously created certificate object on the BIG-IP.

Final step, you should create a new ssl profile that refer to the private key and certificate of your newly created SSL certificate object.