A housing authority uses IPv6 device tracking to build binding tables and wants to constrain which source addresses may leave an access port. Which conceptual control applies those bindings?
Select an answer to reveal the explanation.
Short Explanation
Device tracking fills an IPv6 binding book; Source Guard then checks packets against that book. Sources that never showed up as legitimate neighbors don’t get to speak on that jack.
Full Explanation
IPv6 first-hop security uses device tracking / binding tables learned from ND and related gleaning. IPv6 Source Guard enforces those bindings so unauthorized sources cannot leave the access port—conceptually parallel to IPv4 IPSG with DHCP snooping. IPv4-only snooping, MST mapping tricks, and blanket CoPP drops of ICMPv6 do not implement binding-based IPv6 source constraints.