What command line is used to identify the IPv6 capabilities of a device?

What command line is used to identify the IPv6 capabilities of a device?

• A. nmap -6 -n -Pn -sSU -pT:0-65535, U: 0-65535 -v -A -oX <Name> <IP>
• B. Wireshark
• C. ifconfig
• D. Airodump-ng

Answer: (A)

Active IPv6 service discovery requires an IPv6-capable scan that probes ports and services across the network. The command shown uses IPv6 mode (-6) so every probe targets IPv6 addresses. It skips DNS lookups (-n) and assumes the host is up (-Pn), which helps when firewalls block discovery pings. It performs both TCP and UDP probes (-sSU) across the full port range (-pT:0-65535, U:0-65535) to uncover open ports and listening services on the target. With -A, it enables aggressive detection to identify operating systems, service versions, and potential IPv6-related features. Outputting in XML (-oX) makes the results easy to parse and review. Together, this approach yields a detailed view of what IPv6 capabilities the device exposes, including which ports and services are reachable, along with their versions and potential configurations. Other tools like Wireshark are for passively observing traffic, not actively enumerating capabilities; ifconfig shows the local interface configuration rather than what the remote device supports; and Airodump-ng is for capturing wireless traffic.

Active IPv6 service discovery requires an IPv6-capable scan that probes ports and services across the network. The command shown uses IPv6 mode (-6) so every probe targets IPv6 addresses. It skips DNS lookups (-n) and assumes the host is up (-Pn), which helps when firewalls block discovery pings. It performs both TCP and UDP probes (-sSU) across the full port range (-pT:0-65535, U:0-65535) to uncover open ports and listening services on the target. With -A, it enables aggressive detection to identify operating systems, service versions, and potential IPv6-related features. Outputting in XML (-oX) makes the results easy to parse and review. Together, this approach yields a detailed view of what IPv6 capabilities the device exposes, including which ports and services are reachable, along with their versions and potential configurations.

Other tools like Wireshark are for passively observing traffic, not actively enumerating capabilities; ifconfig shows the local interface configuration rather than what the remote device supports; and Airodump-ng is for capturing wireless traffic.