EEPORTCK start option

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   .-EEPORTCK--=--NO------.   
>>-+----------------------+------------------------------------><
   '-EEPORTCK--=--+-NO--+-'   
                  '-YES-'     

For Enterprise Extender (EE), this option determines whether VTAM® accepts inbound UDP packets that are destined to one of the five EE ports (defined by IPPORT), that specify an ephemeral source port. You can modify this start option.

EEPORTCK=NO
Specifies that VTAM accepts inbound UDP packets that are destined to one of the five EE ports, which specify an ephemeral source port.
EEPORTCK=YES
Specifies that VTAM does not accept inbound UDP packets that are destined to one of the five EE ports, which specify an ephemeral source port. If the source and destination ports do not match, the packet is immediately discarded.

Result: Some EE platforms use an ephemeral source port for EE communications. Specifying EEPORTCK=YES in these configurations might result in loss of connectivity to these EE platforms. Similar connectivity issues might result if your EE communications uses network address port translation (NAPT).