HP 635n - JetDirect IPv6/IPsec Print Server How To Use Manual page 81

Here we can see that there are 2 certificates being returned by the Authentication Server:
"ias.example.internal" issued by R2, an intermediate certificate authority
•
"R2.example.internal" issued by RootCA, the root certificate authority.
•
The first certificate is the IAS server's certificate that Jetdirect will check the Server ID field against.
Therefore, the server ID field needs to be configured correctly based upon the common name of
"ias.example.internal". The next certificate is part of the chain that is sent back to the client. This is
R2's certificate. Let's look at these more closely.
81