Question 380
At the Marshport cloud software developer, an FTD remote VPN authenticates users but internal servers cannot reply to addresses in the client IP pool. How should the organization sustain the improvement?
Explanation
Correct Answer
The needed prevention is to review client pool reachability after changes to internal routing. It directly sustains the original change to configure valid return routes NAT exemptions and access rules for the VPN address pool.
Incorrect Answers
The suggested preventive check is: Review VPN route and selector configuration after subnet additions. Its technical scope concerns: Successful IKE establishment does not ensure every intended traffic selector is negotiated. This question asks how to sustain control over: Authentication success cannot compensate for missing routing to remote client addresses. The more targeted safeguard is: Review client pool reachability after changes to internal routing.
Retain diagnostic correlation fields during log schema changes. That safeguard would help prevent recurrence of: Policy decisions need matching packet and rule context to identify the actual failure. The risk being reviewed here is instead: Authentication success cannot compensate for missing routing to remote client addresses. The matching ongoing control is: Review client pool reachability after changes to internal routing.
That routine supports east west firewall segmentation, but the relevant ongoing risk requires the team to review client pool reachability after changes to internal routing. For the Marshport cloud software developer, the direct corrective action is to configure valid return routes NAT exemptions and access rules for the VPN address pool.