156-315.81.20 Advanced VPN Design Practice Question
A security administrator is configuring a Remote Access VPN with Endpoint Security VPN clients. The requirement is that all client traffic, including Internet-bound traffic, must be inspected by the gateway's Threat Prevention blades before reaching its destination. Which client configuration setting should the administrator enable?
⚠ Common exam trap
Test-takers frequently confuse split tunneling with full tunneling, or assuming Visitor Mode or Hub Mode affects traffic inspection.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable 'Route all traffic to gateway' in the VPN client's advanced settings.
To have the gateway inspect all client traffic, the client must route everything into the tunnel. The 'Route all traffic to gateway' option creates a full-tunnel configuration, ensuring that Internet-bound packets reach the Security Gateway where Threat Prevention and other blades can inspect them before forwarding.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable 'Route all traffic to gateway' in the VPN client's advanced settings.
Why this is correct
This setting, sometimes called full tunnel or 'Route all traffic to gateway,' forces the client to send all packets through the encrypted tunnel. Once traffic arrives at the gateway, it is decrypted and subjected to the installed software blades, including Threat Prevention, before being forwarded to the Internet.
- ✗
Configure the client to use 'Hub Mode' with a dedicated gateway cluster.
Why it's wrong here
Hub Mode relates to Multi-Domain or MEP deployments where clients connect to a specific hub for load distribution, not to traffic routing policy. It does not force client Internet traffic through the gateway's blades, so it would not satisfy the requirement for Threat Prevention inspection of all traffic.
- ✗
Enable 'Allow split tunneling' and define the corporate subnet as the only encrypted route.
Why it's wrong here
Split tunneling does the opposite of the requirement: it sends only corporate-bound traffic through the tunnel while Internet traffic exits locally. That means Internet-bound packets bypass the gateway entirely and are never inspected by Threat Prevention, failing the security objective.
- ✗
Enable 'Visitor Mode' on the gateway so clients connect over a single port.
Why it's wrong here
Visitor Mode changes the connection method to TCP port 443 for clients behind restrictive firewalls. It does not influence whether traffic is routed through the gateway for inspection. Enabling it would not ensure that Internet-bound traffic passes through Threat Prevention, so it does not meet the stated requirement.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Check Point exam blueprint
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