Why multiple UEs can register free5GC with the same config file?

Q/A
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#1

Hi everyone,
In general, IMSI is unique to each UE. However, I can use UERANSIM to register multiple UEs with the same config file, and the IMSI included in the file is fixed, i.e., 208930000000003. I wonder how to understand this phenomenon?

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#3

The UERANSIM takes the IMSI present in the config file for the 1st UE and then increments for each new one.

#2

Hi,
As I know, the free5gc current version doesn’t support detect same IMSI now. Therefore, it would happen that multiple UE with same config register to free5gc.

#4