With the new PCI DSS requirements around the corner it might be interesting to gather some SSL cipher statistics from your F5’s. If you have a syslog server this is a piece of cake using the HSL function in iRules.

To use the iRule below, first create a pool called syslog-514_pool, or simply replace the name with a pool containing your syslog server(s). Then, for each virtual server attach the following iRule:

 

Essentially, what it does is to send a syslog message for every new SSL session established. This data could easily be indexed by Splunk or Elastic search to generate a report.

PS. If you have a Firewall between your loadbalancer and your syslog server you might want to verify that it’s open first.