Secure Network Administrationintermediate
A student can ping the local firewall interface but cannot ping a host at the remote site. Which conclusion is best supported?
Answer
Interface ping access works, but transit routing, policy, or VPN forwarding may still be wrong
Explanation
### Why this is right
A reply from the local firewall confirms that the local interface responds to ping. It does not test whether packets can pass through the firewall, enter the VPN, reach the remote host, and return.
### The concept
The destination determines what is being tested. A ping to the firewall itself uses interface-management permissions. A ping to a remote host depends on forwarding, routes, security policies, tunnel status, and return-path configuration.
### The other options
- **B. The remote VPN must be fully working because the local gateway replies**: the local interface can respond even when the remote tunnel is down.
- **C. The interface-management profile automatically permits all transit traffic**: management profiles do not replace security policies.
- **D. The local host no longer needs a default gateway**: the host still needs an appropriate gateway to reach off-subnet destinations.
### Watch out
A successful gateway ping is a local-interface test, not an end-to-end VPN test.
### Remember
Test the actual remote host to verify the whole path.
Related Questions
- Which statement best describes the protection a Virtual Private Network (VPN) provides?(basic)
- A VPN that encrypts traffic also guarantees that the applications on both endpoints are safe.(basic)
- Explain why a split-tunnel design can reduce central inspection, and identify the traffic affected.(advanced)
- Select ALL protection goals a VPN can support directly through the mechanisms described in the course.(intermediate)
- Compare remote-access and site-to-site VPN designs, including their endpoints and a suitable example of each.(basic)
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