How do you test a network for blocked traffic?

To test a network for blocked traffic, you can use tools like ping or traceroute to check connectivity to specific hosts and identify any interruptions. Additionally, employing network packet analyzers like Wireshark can help monitor traffic and identify where packets are being dropped or blocked. Running port scans with tools such as Nmap can also reveal which ports are accessible or blocked. Finally, analyzing firewall rules and configurations is crucial to understand potential restrictions in traffic flow.