What are IPv4 and IPv6?

IP address is an internet protocol. It is a unique address that identifies a device in the network.

IPv4 is the fourth version of the IP protocol. It includes 4 decimal digits (0 to 255) that are separated with dots. For instance, 44.112.11.55.

Since IPv4 has limited supplies of available addresses, a new version — IPv6 — appeared.

IPv6 addresses are represented as eight groups of four hexadecimal digits. The groups are separated by colons (:). For instance, 2001:0db8:11a3:09d7:1f34:8a2e:07a0:765d

At the moment, IPv6 is being widely introduced. If you have an activated server, you can get an IPv6 for free.

Unfortunately, these versions of the protocol are incompatible. If your provider doesn't support IPv6, you won't be able to use this address when trying to reach a website/server.

Check whether your provider supports IPv6 here: http://test-ipv6.com/