What CLI utility allows an administrator to capture traffic along the firewall inspection chain?

The selected answer is linked to the utility specifically designed to capture and monitor traffic as it passes through the firewall inspection chain. This tool, known for its in-depth capabilities, enables administrators to view packets at various points in the inspection process, including before they are processed and after they traverse different security layers.

Using this utility, an administrator can analyze traffic behaviors, troubleshoot issues, and gain insight into how rules and policy settings affecting packet flow are applied in real time. This level of granularity is vital for understanding security events and network performance, making it an invaluable tool for network security professionals.

While other choices may relate to general traffic capture or monitoring, they do not provide the specific focus on the firewall inspection chain that this utility offers. For instance, tcpdump is a widely used packet capturing tool, but it does not have the specialized functions for firewall-specific inspection that the selected answer possesses. Similarly, the other options mentioned also fail to provide the unique capabilities of traffic monitoring within the firewall's architecture.