IPv6 Connection Test
Check if your network supports IPv6 connectivity
Frequently Asked Questions
What is IPv6?
Do I need IPv6?
How to enable IPv6?
How do I know if my internet provider supports IPv6?
Will IPv4 stop working when IPv6 is fully adopted?
What is IPv6?
IPv6 (Internet Protocol version 6) is the most recent version of the Internet Protocol. It was designed to replace IPv4 due to the exhaustion of available IPv4 addresses.
IPv6 uses 128-bit addresses (compared to IPv4's 32-bit), allowing for approximately 340 undecillion unique addresses - enough for every device on Earth to have multiple addresses.
IPv4 vs IPv6 Comparison
| Feature | IPv4 | IPv6 |
|---|---|---|
| Address Length | 32 bits | 128 bits |
| Address Format | 192.168.1.1 | 2001:0db8:85a3::8a2e:0370:7334 |
| Total Addresses | ~4.3 billion | ~340 undecillion |
| Header Size | 20-60 bytes | 40 bytes (fixed) |
| Security | Optional IPsec | Built-in IPsec |
Why IPv6 Matters
Future-proof: With IPv4 addresses nearly exhausted, IPv6 ensures continued internet growth.
Better Performance: Simplified headers and built-in multicast support can improve network efficiency.
Enhanced Security: IPsec encryption is mandatory in IPv6, providing better security by default.
No NAT Required: Every device can have its own public IP, simplifying peer-to-peer connections.