IPv6 Transition Method Sorter

About this interactive

Networks do not switch from IPv4 to IPv6 overnight, and three methods carry them through. With dual stack, every device runs both protocols, holds an address of each kind and talks to each neighbour in whichever version it understands; nothing in the path changes the packets. With translation, a device at the edge rewrites packets from one version to the other, much as NAT rewrites private addresses into public ones, so an IPv6-only network can reach IPv4-only servers, or the other way round. With tunneling, a packet is carried whole inside a packet of the other version across a network that cannot carry it, and unwrapped at the far end, the way a VPN carries traffic. The clue is what happens to the packet. If it is never changed, it is dual stack. If its header is swapped for the other version's, it is translation. If it gains a second header and loses it again at the far end, it is tunneling. Nine of the twenty-one cards are drawn each run, and after you check, every card says which method it is and why.

What you'll learn

Decide whether a network moving from IPv4 to IPv6 is using dual stack, translation or tunneling, from what happens to its packets
Tell translation, which rewrites a packet as the other version, from tunneling, which carries it whole inside the other version

Aligned to

Cisco CCNA

1.9 Describe IPv6 address types

CompTIA Network+

3.4 Given a scenario, implement IPv4 and IPv6 network services

Key terms

Dual Stack: A network configuration that enables a device to operate with both IPv4 and IPv6 addresses simultaneously on the same interface.
NAT64: A transition mechanism that translates between IPv4 and IPv6 addresses, enabling communication between IPv4-only and IPv6-only network segments.
Tunneling: A transition mechanism that encapsulates IPv6 packets within IPv4 headers (or vice versa) to carry traffic across a network that uses a different IP version.
Encapsulation: The process of wrapping data with protocol headers as it passes down the layers of the OSI model.

Topics

Ipv6 Ipv6 Transition Dual Stack Translation Tunneling Interactive Categorize

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