Which tool is described as a command-line oriented network scanning and packet crafting tool that supports ICMP, TCP, UDP, and raw-IP protocols?

Which tool is described as a command-line oriented network scanning and packet crafting tool that supports ICMP, TCP, UDP, and raw-IP protocols?

• A. Nmap
• B. Hping2/Hping3
• C. NetScanTools Pro
• D. Wireshark

Answer: (B)

Packet crafting and protocol-level testing from the command line is what this tool specializes in. Hping2 and its successor Hping3 are designed exactly for that: they let you craft and send ICMP, TCP, UDP, and raw IP packets with precise control over headers, flags, sequence numbers, and payloads. This enables targeted probes and tests—like ICMP echo checks, various TCP scans (SYN, ACK, FIN), or custom UDP probes—and makes it possible to evaluate firewall rules, IDS responses, and overall network behavior. Because it’s command-line based, you can script and automate these tests, which is essential for repeatable lab exercises and advanced testing scenarios. The other tools mentioned focus on different roles: one is primarily a service/discovery scanner with some packet capabilities but not the same depth of manual packet crafting; another is a graphical analyzer for observing traffic, not actively crafting and sending packets; and another provides a broad GUI toolkit rather than a focused command-line packet crafter. So, this description points to Hping2/Hping3.

Packet crafting and protocol-level testing from the command line is what this tool specializes in. Hping2 and its successor Hping3 are designed exactly for that: they let you craft and send ICMP, TCP, UDP, and raw IP packets with precise control over headers, flags, sequence numbers, and payloads. This enables targeted probes and tests—like ICMP echo checks, various TCP scans (SYN, ACK, FIN), or custom UDP probes—and makes it possible to evaluate firewall rules, IDS responses, and overall network behavior. Because it’s command-line based, you can script and automate these tests, which is essential for repeatable lab exercises and advanced testing scenarios. The other tools mentioned focus on different roles: one is primarily a service/discovery scanner with some packet capabilities but not the same depth of manual packet crafting; another is a graphical analyzer for observing traffic, not actively crafting and sending packets; and another provides a broad GUI toolkit rather than a focused command-line packet crafter. So, this description points to Hping2/Hping3.