A port authority needs to block unauthorized DHCPv6 servers on the same Layer-2 segment as legitimate clients. Which control parallels IPv4 DHCP snooping’s goal for IPv6?
Select an answer to reveal the explanation.
Short Explanation
DHCPv6 Guard is snooping’s IPv6 cousin—only trusted ports may hand out v6 leases. A rogue DHCPv6 box on an access port gets muted.
Full Explanation
DHCPv6 Guard classifies ports as server/client (or trusted/untrusted equivalents) so unauthorized DHCPv6 replies cannot serve the segment—analogous in goal to IPv4 DHCP snooping. IPv4 IPSG does not automatically police IPv6 DHCP; PVLAN alone and GRE keepalives are not DHCPv6 server filters.