To set up SNA for the Server Option
Define the SECACPT=CONV parameter on the APPL definition for the APPC/IMS LU.
To allow an LU to support conversation level security, you must set the PSERVIC parameter of a Logmode entry. Assign each LU a Logmode corresponding to the desired level of security.
The 10th byte of PSERVIC determines security as follows:
x’00’ – LOCAL
x’12’ – IDENTIFY
x’10’ – VERIFY