Question

What are three approaches that are used when migrating from an IPv4 addressing scheme to an IPv6 scheme? (Choose three.)
Group of answer choices

Enable dual-stack routing

Configure IPv4 tunnels between IPv6 islands

Use proxying and translation to translate IPv6 packets into IPv4 packets

Configure IPv6 directly

Answer 1

When migrating from an IPv4 addressing scheme to an IPv6 scheme, the following three approaches are commonly used:

1. **Enable dual-stack routing**: This approach allows both IPv4 and IPv6 to be run simultaneously on the same network. Devices can communicate using either protocol, providing a seamless transition as parts of the network move to IPv6.

2. **Configure IPv4 tunnels between IPv6 islands**: Tunneling allows IPv6 packets to be transmitted over an IPv4 infrastructure. This is particularly useful when connecting isolated IPv6 networks (islands) over an existing IPv4 network.

3. **Use proxying and translation to translate IPv6 packets into IPv4 packets**: This method involves using translation mechanisms like NAT64/DNS64, which allows IPv6-only devices to communicate with IPv4 resources by translating address formats and protocols.

Therefore, the correct answers are:
- Enable dual-stack routing
- Configure IPv4 tunnels between IPv6 islands
- Use proxying and translation to translate IPv6 packets into IPv4 packets