Thank you for your help.
Please check the technical specifications of Cisco Secure Access.
How does Secure Client (AnyConnect VPN) determine which region Secure Access is connected to?
When you assign multiple IP pools to a VPN Profile, the name "Auto Select Nearest Location" has been added to the AnyConnect VPN destination (Global FQDN).
I think that the nearest region will be selected in some way, but the flow when determining the nearest region from the connection source is unknown.
Is there a similar mechanism implemented for Client ZTA Module and Clientless ZTA to connect to the nearest region?