### Before you start

Before starting with TCP/IP installation and configuration, you should:

1. In the COBOL PDS with the low-level qualifier SIGYSAMP find three assembler routines: IGYFINF, IGYFSAVE, and IGYFWAIT. Assemble and link them. IGYFINF and IGYFWAIT should be linked with options AMODE(24) RMODE(24) (these are the default linker options). IGYFSAVE should be linked with options AMODE(31) RMODE(24).
2. Update member IGYFLIBS of the PDS with low-level qualifier SIGYCLST with the name of the PDS that contains the load modules you created in the previous step.