IP Addressing and Subnetting

IPv6 Address Fundamentals

Learn what IPv6 addresses identify, how unicast and anycast differ, how prefixes relate to links, and why interfaces maintain several address-related memberships.

Beginner12 min read
IP Addressing and Subnetting lessonNetworkingPractice

UNTIMED COACHING

Practice before the pressure

Use feedback to correct the model, not merely memorize an option position.

GUIDED PRACTICE

Practice the lesson questions

Answer normal lesson questions without a timer. Every answer includes an explanation, and incorrect answers can be tried again before continuing.

CONCEPT MODELS

See the lesson as a system

Use these visual guides to connect the key ideas before answering the questions.

IPv6 Address RolesIPv6 addresses identify one interface or a destination set, with scope and role shaping communication.
IPv6 Address RolesA relationship map connecting IPv6 addresses to interfaces, single destinations, and destination sets.
IPv6 addressIdentifies an IPv6 interface
One interfaceUnicast reaches one interface
Interface setAnycast reaches one eligible interface
UnicastNames one interface.
Prefixes and LinksPrefixes group leading address bits, while subnet prefixes associate address ranges with links.
Prefixes and LinksA flow from address prefix to subnet prefix and then to one link.
Address prefixSelects leading address bits
Aggregated rangeCombines related address ranges
Subnet prefixAssociates a prefix with one link
One linkConnects the prefix to one link
Interface Address MembershipInterfaces require Link-Local presence and derive Solicited-Node multicast membership from configured unicast and anycast addresses.
Interface Address MembershipAn interface receives multiple address roles, with unicast and anycast leading to derived multicast membership.
IPv6 interfaceHolds multiple IPv6 addresses
Link-Local addressSupports communication on one link
Configured addressDerives one multicast group
Solicited-Node groupJoined for every configured address