IPv4 to IPv6 Converter
Convert IPv4 addresses to various IPv6 formats, including IPv4-mapped and 6to4 transition addresses. A professional tool for network engineers to convert IPv4 to IPv6 seamlessly.
Conversion Results
| IPv6 (Compressed) | |
| IPv6 (Expanded) | |
| 6to4 Prefix (2002::/16) |
How to Convert IPv4 to IPv6?
When you use an IPv4 to IPv6 converter, you are typically creating a representation of an IPv4 address within the much larger IPv6 address space. This is essential for dual-stack networks where both protocols must coexist.
The Mapping Logic
IPv4: 192.168.1.1
Hex: C0 A8 01 01
Mapped: ::ffff:c0a8:0101
Why Use an IPv6 Converter?
IPv4 address exhaustion has made IPv6 adoption mandatory. Tools that convert IPv4 to IPv6 help engineers configure transition mechanisms like 6to4 tunnels and IPv4-mapped IPv6 addresses, which allow legacy systems to be addressed in an IPv6-only environment.
Frequently Asked Questions
What is an IPv4-mapped IPv6 address?
It is a hybrid address used to represent an IPv4 node in an IPv6 format. It starts with 80 bits of zeros, followed by 16 bits of ones (ffff), and then the 32-bit IPv4 address in hexadecimal.
Is converting IPv4 to IPv6 the same as upgrading?
No. Conversion is a mapping technique. Real IPv6 deployment requires a native /64 prefix from your ISP and a full stack implementation, not just a representation of your old IPv4 address.
What is 6to4 conversion?
6to4 is a transition mechanism (RFC 3056) that allows IPv6 packets to be transmitted over IPv4 networks. It uses the 2002::/16 prefix combined with your public IPv4 address.
Can I convert IPv6 back to IPv4?
Only if the IPv6 address was originally an IPv4-mapped address. Native IPv6 addresses cannot be converted to IPv4 because the IPv6 address space is $2^{96}$ times larger.