problem with SSL authentication

You can follow this article :

https://devcentral.f5.com/wiki/iRules.ClientCertificateCNChecking.ashx

In my case, i'm checking the certificate serial :

    when RULE_INIT {
        set static::debug 1
}

when CLIENTSSL_CLIENTCERT {
  set cert [SSL::cert 0]
  set sn [X509::serial_number $cert]
  set subject [X509::subject $cert]
  set issuer [X509::issuer $cert]
  set version [X509::version $cert]
}

when HTTP_REQUEST {


      if { ([matchclass $sn contains CLIENT_CERTS])} {
         Accept the client cert
         log local0. "Client Certificate Accepted: $sn"
      } else {
         log local0. "No Matching Client Certificate Was Found Using: $sn"
         reject
      }
   }

Depending of what you want to check we can adjust the client certificate field to verify