Since the same mainframe transactions support both gateway-enabled and gateway-less access, configuring a workstation for gateway-less mainframe access is similar to configuring for gateway-enabled access.
To set up for gateway-less environments, migrate the LAN TRS RPC mapping definition files to the SYRPCFIL file on the mainframe. This is accomplished by using a CICS transaction called SYRP, which maps LAN RPC names to CICS transaction names. SYRPCFIL is a VSAM file that stores the RPC mapping entries.
The SYRP transaction is a panel-driven interface that allows the user to add, delete, change, and display entries in the SYRPCFIL file.