Yes, you will need a public IP address when configuring Sangfor VPN

Two internal IP addresses are required, and the static public IP is simpler and more effective for configuration.

When setting up Sangfor VPN, a public IP address is absolutely necessary.

On any VPN, Public Ip is required.

The static public IP is easier to set up and more effective than two internal IP addresses.

yes it is required

In comparison to the two internal IP addresses, the static public IP is more efficient and simpler to set up.

Because this is already a connection that leads to the internet, even though through a VPN, inevitably you have to use a Public IP

Yes VPN is a concept of connecting remote offices so in that case Public IP is mandatory.

Not Specifically, but your internet Public IP can also be used for VPN.