What is a valid reason for using session-based authentication instead of IP-based authentication?

Using session-based authentication instead of IP-based authentication is particularly advantageous when multiple users share the same IP address. This scenario often occurs in environments where devices are behind a shared network address, such as a NAT (Network Address Translation) environment, or in situations like public Wi-Fi networks.

In IP-based authentication, access is granted based on the IP address of the user. If multiple users are connecting from the same IP address, it becomes challenging to manage unique authentication for each user effectively. This can lead to security concerns, as it may not be clear which user is responsible for actions taken from that IP address.

Session-based authentication resolves this issue by establishing a unique session for each user, allowing for individual authentication and management regardless of the shared IP address. This approach enhances security because it differentiates between users based on their unique authentication sessions rather than relying on a shared identifier. Thus, when using session-based authentication, each user is required to enter their credentials, which raises the security level and provides better tracking of user activities.