IPv4 and IPv6 Compatibility Requirements (obj 1.8) Flashcards
(11 cards)
What was IPv6 designed to be compatible with?
IPv4
IPv6 was specifically created to ensure compatibility with the existing IPv4 protocol.
What allows both IPv4 and IPv6 to coexist on the same network?
Dual Stack
Dual Stack architecture enables the simultaneous operation of both protocols.
What does the term ‘Dual Stack’ refer to?
A network architecture that allows coexistence and simultaneous operation of IPv4 and IPv6
Devices must be configured to handle both address types.
What is the default preference for network communication in a Dual Stack architecture?
IPv6 with fallback to IPv4
This ensures communication continues if IPv6 is unsupported.
What is tunneling in the context of network protocols?
A method that enables communication of one network protocol within another by encapsulating packets
Tunneling is essential for transitioning from IPv4 to IPv6.
What happens during encapsulation in tunneling?
IPv6 packet is encapsulated within an IPv4 packet at the source
This allows IPv6 packets to be sent over an IPv4 infrastructure.
What is decapsulation in the context of tunneling?
The original IPv6 packet is deencapsulated at the tunnel’s endpoint
This allows the packet to be delivered to its intended IPv6 destination.
What are the two types of tunnel endpoint configurations?
- Static tunnels
- Dynamic tunnels
These configurations enable data transportation through incompatible networks.
What does NAT64 allow?
IPv6-only devices to communicate with IPv4 servers
This is crucial in environments where dual stack configuration is not feasible.
How does NAT64 facilitate interoperability between IPv4 and IPv6?
Translates IPv6 addresses into IPv4 addresses and vice versa
This mechanism helps conserve IPv4 addresses.
What role does the NAT64 gateway play?
Manages translations seamlessly at the edge of the IPv6 network
This is essential for allowing multiple IPv6 devices to share a single IPv4 address.
