03-31-2025, 05:16 AM
The correct answer should be "IPv6 Prefix Guard".
IPv6 Prefix Guard is used on ingress interfaces to deny access to traffic that has a correct address but that is not topologically correct. The feature discovers ranges of addresses that have been assigned to a link and blocks any traffic sourced with an address outside that range, ensuring that traffic is sourced from its assigned location.
https://www.cisco.com/c/en/us/td/docs/sw...%20command.
https://www.cisco.com/c/en/us/td/docs/io...20gleaning.
IPv6 Prefix Guard is used on ingress interfaces to deny access to traffic that has a correct address but that is not topologically correct. The feature discovers ranges of addresses that have been assigned to a link and blocks any traffic sourced with an address outside that range, ensuring that traffic is sourced from its assigned location.
https://www.cisco.com/c/en/us/td/docs/sw...%20command.
https://www.cisco.com/c/en/us/td/docs/io...20gleaning.