Exam NSE7_FSN_AR-7.6 Topic 1 Question 130 Discussion
Actual exam question for Fortinet's NSE7_FSN_AR-7.6 exam
Question #: 130
Topic #: 1
Question #: 130
Topic #: 1
During the last network migration, the IT department discovered that all-zero phase selectors in phase 2 IPsec configurations impacted network operations.
What are two valid recommendations to prevent potential invalid paths during future migrations? (Choose two.)
What are two valid recommendations to prevent potential invalid paths during future migrations? (Choose two.)
Suggested Answer: A,D Vote an answer
The Enterprise Firewall 7.6 Administrator Study Guide specifically warns that all-zero phase 2 selectors can introduce invalid paths during migrations, particularly when many routes are advertised across VPN tunnels or overlapping networks exist. One recommended mitigation is to use dynamic routing protocols to explicitly control which subnets are permitted and advertised through the tunnel, making A correct.
Fortinet also recommends defining the required encryption domains precisely in the phase 2 selectors.
Specifying the exact network segments ensures that only designated traffic is eligible for the IPsec tunnel, making D correct. An IPsec aggregate provides redundancy but does not solve inappropriate route or encryption-domain selection. Assigning IP addresses to tunnel interfaces can support routing designs, but it is not the documented mitigation for invalid paths caused by overly broad all-zero selectors.
Fortinet also recommends defining the required encryption domains precisely in the phase 2 selectors.
Specifying the exact network segments ensures that only designated traffic is eligible for the IPsec tunnel, making D correct. An IPsec aggregate provides redundancy but does not solve inappropriate route or encryption-domain selection. Assigning IP addresses to tunnel interfaces can support routing designs, but it is not the documented mitigation for invalid paths caused by overly broad all-zero selectors.
by Nina at Oct 13, 2026, 03:08 AM
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