z/OS Communications Server: SNA Network Implementation Guide
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Network address/port translation (NAPT)

z/OS Communications Server: SNA Network Implementation Guide
SC27-3672-01

NAPT is a technique in which multiple internal IP addresses are translated into a single public IP address. As part of this translation process, the TCP and UDP ports in the packets are translated.

Restriction: Because EE has dependencies on port assignments, and a one-to-one IP address mapping, NAPT is incompatible with EE.

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