![]() ![]() The last 64 bits of an IPv6 address (known as the interface identifier) are often derived from the MAC address to ensure uniqueness within a local network. Stateless Address Autoconfiguration (SLAAC): In IPv6, SLAAC is a mechanism that allows hosts to configure their IPv6 addresses automatically.Here are a few reasons why converting a MAC address to an IPv6 address interface identifier is done: This process is commonly used in Stateless Address Autoconfiguration (SLAAC), a method by which IPv6 hosts can automatically configure their interface addresses without the need for manual configuration or a DHCP server. Why Should You Convert MAC to IPv6?Ĭonverting a MAC (Media Access Control) address to an IPv6 (Internet Protocol version 6) address is typically done to generate the interface identifier part of an IPv6 address. So, the IPv6 Interface ID is 3E3C:4DFF:FE5E. In our example, the modified first byte is 3E, and the "FFFE"-inserted part is 3C:4D:FF:FE:5E. In our example, if the first byte is 3C, invert the "U/L" bit, and it becomes 3E.Ĭombine: Combine the modified first byte with the "FFFE"-inserted part. In our example, it becomes 3C:4D:FF:FE:5E.įlip the "U/L" bit: Invert the second least significant bit of the first byte of the MAC address. Insert "FFFE": Insert "FFFE" in the middle of the MAC address. While there isn't a direct conversion between MAC addresses and IPv6 addresses, there is a common technique to generate an IPv6 Interface ID from a MAC address, which is commonly used in Stateless Address Autoconfiguration (SLAAC).Įxtract the MAC address: For example, if the MAC address is 00:1A:2B:3C:4D:5E, take the last 6 bytes (3C:4D:5E) as the MAC address. You can only convert those valid IPv4-represented IPv6 addresses.Convert How to Convert MAC to IPv6 Address ![]() A particular range of IPv6 addresses represents the IPv4 addresses space. Therefore, you cannot convert all the IPv6 addresses to IPv4 addresses. Thus, IPv6 addresses are 1028 times larger than IPv4 addresses in numbers. The IPv4 address is 32-bit long, and the IPv6 address is 128-bit long. Is there a one-one correspondence between IPv4 and IPv6 addresses? However, you can compress IPv6 as per your need. However, the actual number is slightly less, as several ranges are for a particular use or excluded to use.Īn example of an expanded IPv6 is: fe80:cd00:0000:0cde:1257:0000:211e:729c IPv6 address is the latest and most up to dated IP version. Therefore, to overcome future scarcity, IPv6 was introduced. 2: IPv6 addressĪlthough the IPv4 address carries most Internet traffic, however, due to the unconstructed distribution of IPv4 addresses, the world realized the upcoming shortage of IPv4 addresses. It uses a 32-bit address scheme and contains more than 4 billion IP addresses (4,294,967,296 in exact amount). IPv4 is the most commonly recognized IP address version and carries most internet traffic. An IP address, or Internet address, is categorized into two main versions: IPv4 and IPv6. What are IPv4 and IPv6?īefore diving deeper into IPv4 and IPv6 addresses, one must have an idea of what is an IP address.Īn IP address or Internet Protocol address is a unique number string assigned to each device connected to the computer network. To break down a single network into smaller networks, use an IP subnet calculator for subnetting. In the case of the above-entered IPv6 address, the tool provides you with the following result in IPv4 format 3.112.115.52.The IPv6 to IPv4 calculator processes your request and provides you with a converted IPv4 address.Click on the "Convert IPv6 to IPv4" button.To map a valid Internet Protocol Version 6 address into Internet Protocol Version 4 address, IPv6 to IPv4 conversion, or 6to4 notation, perform the following steps. How can a valid IPv6 address be mapped into an IPv4 address or 6to4 notation? If you want to perform the reverse conversion, you can do this with IPv4 to IPv6 converter. It benefits when using the same IPv6 address in its IPv4 variant. The IPv6 to IPv4 converter provides IPv6-mapped IPv4 addresses or 6to4 notation. IPv6 to IPv4 Converter - Convert IPv6 to IPv4 ![]()
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