Exam NSE7_EFW-7.2 Topic 1 Question 19 Discussion

The "single-source" option ensures that only one remote site is connected at any time, which aligns with the requirement in the question. This option prevents multiple VPN tunnels from being established between the same source and destination networks, and allows only the most recent tunnel to be active. This can be useful for scenarios where multiple remote sites have the same IP address range, as shown in the exhibit. Reference := Fortinet Enterprise Firewall Study Guide for FortiOS 7.2, page 142.