What is 6to4 address?
Any IPv6 address that begins with the 2002::/16 prefix (in other words, any address with the first two octets of 2002 hexadecimal) is known as a 6to4 address, as opposed to a native IPv6 address which does not systematically use transition technologies.
What do 6to4 addresses always start with?
6to4 addresses are easily recognizable because they always start with 2002. Because every 6to4-derived IPv6 address maps to an IPv4 address, it’s easy for a system that understands 6to4 to tunnel the IPv6 packets to the right place over IPv4.
How do I set up 6to4?
Using 6to4 for IPv6 at Home
- Step 1: Find a 6to4 Relay Near You. Like any tunnel, our 6to4 tunnel must have two endpoints.
- Step 2: Ensure IPv6 Routing is Enabled.
- Step 3: Configure the Tunnel Interface on the Router.
- Step 4: Set Up IPv6 Routes.
- Step 5: Number the Inside IPv6 Network(s)
Is 6to4 tunneling bad?
When the 6to4-connection fails it has to time-out before hosts try the IPv4 connection. This results in a poor user experience, which is the reason some large content providers are hesitant to dual-stack their content.
What’s the difference between anycast and anycast 6to4?
The difference is that Anycast 6to4 specifies a way by which public relay routers can be made available to small sites and individual hosts by assigning a public IPv4 address – 184.108.40.206 – to be used as the 6to4 relay Anycast address. We will be using a Windows XP machine as our 6to4 host.
Why was the 6to4 anycast prefix deprecated in 2015?
Due to unsolvable operational problems using the 6to4 anycast prefix, that part of the standard was deprecated in 2015. 6to4 performs three functions: Assigns a block of IPv6 address space to any host or network that has a global IPv4 address.
Why is anycast 220.127.116.11 assigned to anycast?
To avoid the need for users to set this up manually, the anycast address 18.104.22.168 used to be allocated. It could be assigned to any number of 6to4 relay routers, so that IPv4 routing would take care of routing the encapsulated IPv6 packets to the one closest-by for forwarding onto IPv6 Internet.
Where are the 6to4 relays on the Comcast Network?
The 6to4 relays were turned up on August 17, 2010. These 6to4 relays are available via the standard 6to4 anycast IP address which is 22.214.171.124. Devices attempting to use 6to4 within the Comcast network should automatically discover and utilize these 6to4 relays, without end user intervention or configuration.