iRule error undefined procedure

Hi Eric,

the iRule looks very valid. Could be the case that a leading or trailing line may cause this issue...

So clear the content of your existing iRule using STRG+A -> STRG-X and then STRG-C -> STRG-V the iRule below...

when HTTP_REQUEST { 
    if { [SSL::cert count] > 0 } then { 
        set clientcert [SSL::cert 0] 
        set clientdn [X509::subject [SSL::cert 0]] 
        set clientserial [X509::serial_number [SSL::cert 0]] 
        HTTP::header insert XClientCert [b64encode $clientcert] 
        HTTP::header insert XClientDN $clientdn 
        HTTP::header insert XClientSerial $clientserial 
    } 
}

Cheers, Kai