IPv4 vs IPv6 FAQs
Why are we switching from IPv4 to IPv6?
With the rapid growth of the Internet, enhancements to its IPv4 addressing scheme are needed to support the influx of new subscribers, Internet-enabled devices, and applications. Built upon the functionality of IPv4, IPv6 is designed to enable the continued global expansion of the Internet by creating a much larger pool of IP addresses while also providing improvements to Internet addressing, configuration, maintenance, and security capabilities.
Can you use both IPv4 and IPv6?
Yes. A device that supports dual-stack IPv4/IPv6 addressing can interoperate equally with IPv4-only, IPv6-only, and other dual-stacked IPv4/IPv6 devices. When two communicating devices are both dual stacked, they agree on which IP version to use.
Which is faster: IPv4 or IPv6?
In theory, IPv6 should be faster. However, owing to the larger packet sizes that IPv6 uses, it might be slower in some use cases.
Which type of interface card supports Carrier-Grade Network Address Translation (CGNAT)?
The Junos OS enables its users to implement and scale their CGNAT solutions based on the type of service interfaces used for the implementation. The MS-MPC, MS-MIC, and MX-SPC3 interface cards for Juniper MX Series Universal Routing Platforms, for example, perform compute-intensive CGNAT services.