CA PIM - Unix: 12.8 SP1 CP2
CA PAMSC - Unix: 14.1 CP2
Fix is included in PIM 12.8 SP1 CP5.
And also it is included in PAMSC 14.1 CP3.
Please apply latest patch level, (currently 14.10.60.186 on Feb 2025 or later in PAMSC).
The workaround is to check sessionID for TCP log and find login log with same sessionID and see the source host.
Please be aware that sessionID will be changed after restarting PIM/PAMSC.