Secure Network Administrationadvanced
Explain why a split-tunnel design can reduce central inspection, and identify the traffic affected.
Answer
A split tunnel sends only specified routes through the VPN. Traffic for included internal applications reaches the central gateway, while excluded traffic such as a public website connection can use direct Internet access. Because excluded traffic does not pass through the gateway, the organization may not inspect it there.
Explanation
### Why this is right\nCentral inspection can occur only for traffic that traverses the inspecting gateway. When a split-tunnel route sends public traffic directly to the Internet, that traffic bypasses the VPN gateway.\n\n### The concept\nA route determines the path used to reach a destination. Full tunneling sends all client traffic through the VPN, while split tunneling includes selected routes and excludes others. The security consequence is a visibility trade-off: excluded traffic may not receive the organization's central inspection.\n\n### What a good answer covers\n- Define split tunneling as routing selected traffic through the VPN.\n- Identify included traffic, such as internal applications.\n- Identify excluded traffic, such as public websites.\n- Explain that excluded traffic can bypass gateway inspection.\n\n### Remember\nIf traffic does not traverse the gateway, that gateway cannot inspect it.
Related Questions
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- Select ALL protection goals a VPN can support directly through the mechanisms described in the course.(intermediate)
- A VPN that encrypts traffic also guarantees that the applications on both endpoints are safe.(basic)
- Which statement best describes the protection a Virtual Private Network (VPN) provides?(basic)
- In a _____ tunnel design, selected internal routes use the VPN while excluded public Internet traffic can travel directly.(basic)
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