Which IPv6 First-Hop Security feature can block IPv6 traffic if this traffic is from an unknown origin?
- RA Guard
- Source Guard
- DHCPv6 Guard
- IPv6 ND inspection/snooping
Explanation: IPv6 Source Guard is a Layer 2 snooping interface feature for validating the source of IPv6 traffic. If the traffic arriving on an interface is from an unknown source, IPv6 Source Guard can block it.