IPv6 and IPv4 compatibility

- [Instructor] From its inception,…IP version six was designed…for long term co-existence with IP version four.…In most cases, your network will most likely use…both IP version four and IP version six for many years.…So what this means is that you need to understand…how they can co-exist.…So when planning an IP version six network,…you need to know what the different types of nodes or hosts…that are on your network.…

Describing the nodes in a specific way…will help define their capabilities on the network…and it is important to understand…the capabilities of each type of node…if you use something called tunneling…because certain types of tunnels…require specific node types.…So some of the different node types…that you'll find available are IPv4-only node…and this is a node that supports only IP version four…and is configured with an IPv4 address only.…

This type of node does not support version six…so it's pretty much what it sounds like.…Now along those same lines, we have an IPv6-only node,…which is a node that supports only IP version six,…