E3873 Cmd Rej: Card GPL type IPGWI requires a link set with IPGWAPC=YES
If the type=ipgwi parameter is specified, then the value specified for the lsn parameter must indicate a linkset with an IP gateway adjacent point code (the ipgwapc=yes parameter is specified in the ent-ls command).
Recovery
Display the settings for the linkset. Enter the rtrv-ls:lsn= command.
Revise the linkset settings as necessary. Refer to the Database Administration - IP7 User's Guide for assistance.
Re-enter the ent-slk command that generated this error message.