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