When conducting a penetration test, which tool would be appropriate for crafting custom ICMP echo requests and analyzing responses to perform network testing?
Hping is a network tool that can send custom packets with a varying degree of complexity and analyze responses, making it specifically appropriate for crafting custom ICMP echo requests (ping) and other types of traffic, which is vital for penetration testing and network security assessments. Nmap, while versatile in network scanning, isn't specifically tailored for packet crafting as Hping is. Tcpdump is primarily a packet sniffer and does not have the capability to craft packets. Netcat is known primarily for its network utility for reading from and writing to network connections using TCP or UDP, but it does not have the capacity to craft ICMP packets like Hping.
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What are ICMP echo requests and why are they used in penetration testing?
How does Hping differ from other tools like Nmap and Tcpdump in terms of functionality?
Can you elaborate on other use cases for Hping in network security assessments?