[WEBINAR] Application Acceleration: Faster Performance for End Users


Definition - What does 6to4 mean?

6to4 is an IPv4 to IPv6 migration scheme and one of the solutions for shifting network infrastructure from IPv4 to IPv6. The underlying concept of 6to4 is very similar to tunneling, but in the 6to4 construct, a node's given IPv4 address is appended to an IPv6 prefix, and all subsequent traffic is then transmitted to other 6to4 enabled nodes. This is most often accomplished via designated relay routers.

Techopedia explains 6to4

6to4 was devised as a way to transition from IPv4 to IPv6, which is a 128-bit addressing scheme. The first 64 bits are considered the address prefix, while the last 64 bits are designated for specific network hosts. Within the 64-bit prefix, a 6to4 enabled host's IPv4 address is appended to the first 16 bits in hexadecimal format. This is how the IPv4 address is transmitted to other nodes.

The Internet Assigned Numbers Authority (IANA) has designated the 2002::/16 prefix as the official prefix for all 6to4 traffic.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
"Techopedia" on Twitter

Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Free Whitepaper: The Path to Hybrid Cloud
Free Whitepaper: The Path to Hybrid Cloud:
The Path to Hybrid Cloud: Intelligent Bursting To Amazon Web Services & Microsoft Azure
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.