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Possible to Use IPv4 and IPv6 at the same time?

Possible to Use IPv4 and IPv6 at the same time?

Can IPv6 and IPv4 work simultaneously?

Asked by: Guest | Views: 64
Total answers/comments: 1
Guest [Entry]

"It depends in what context you're referring to.

If you're asking whether a given NIC on a given OS can have both an IPv4 and IPv6 address at the same time, yes. This is more ""coexisting"" than ""using simultaneously"". Think of them as parallel network stacks -- network traffic will use one or the other but not both.
If you're asking whether a given application can access a network resource with both at the same time, kinda-sorta-maybe-ish. There are methods to allow interoperability and communication between the two, but they are 2 completely separate protocols.

This great article ""Interoperability between IPv6 and IPv4"" covers it pretty well."