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CONVERT IPV4 TO IPV6
Here, I will convert the address 192.168.25.234
First we divide each octet by 16 and write down the remainder, primary school maths!
192 ÷ 16 = 12 remainder 0
168 ÷ 16 = 10 remainder 8
25 ÷ 16 = 1 remainder 9
234 ÷ 16 = 14 remainder 10
We also know that HEX has the following Values
A = 10
B = 11
C = 12
D = 13
E = 14
F = 15
So we can write 192.168.25.234 into HEX like so… C0A8:19EA
First we divide each octet by 16 and write down the remainder, primary school maths!
192 ÷ 16 = 12 remainder 0
168 ÷ 16 = 10 remainder 8
25 ÷ 16 = 1 remainder 9
234 ÷ 16 = 14 remainder 10
We also know that HEX has the following Values
A = 10
B = 11
C = 12
D = 13
E = 14
F = 15
So we can write 192.168.25.234 into HEX like so… C0A8:19EA
OMIT & DOUBLE COLON
• Omit leading zeros: Omit the leading zeros in any 16-bits. For example, IPv6 address 4FDE:0000:0000:0002:0022:F376:FF3B:AC99 may be written as 4FDE:0:0:2:22:F376:FF3B:AC99.
• Double colon: Use double colons (::) in place of a series of zeros. For example, The above address can be further simplified as 4FDE::2:22:F376:FF3B:AC99.
• Double colon: Use double colons (::) in place of a series of zeros. For example, The above address can be further simplified as 4FDE::2:22:F376:FF3B:AC99.
IPV6 FORMAT
The IPv6 address size is 128 bits. IPv6 addresses are represented in hexadecimals. The 128-bit address is divided in to 16-bits, and each 16-bit block is converted to a 4-digit hexadecimalnumber and separated by colons. This type of representation is called colon hexadecimal. The format of IPv6 address is xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx where each x is ahexadecimal digit representing 4 bits or a nibble. IPv6 addresses range from 0000:0000:0000:0000:0000:0000:0000:0000 to ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff.
IPV6 (Internet protocol version 6)
HISTORY OF IPV6
The IPv4 was first developed in the 1970s, and the RFC 791 (IPv4) functionality was published in 1981. Because of the rapid expansion of the internet, IPv4 address space has been getting consumed over the years after 1981.
Internet Engineering Task Force (IETF) started working on a new protocol from 1994, which is going to replace IPv4.
Following are the major RFCs related with IPv6, which will replace IPv4 in near future.
• Internet Protocol, Version 6 (IPv6) Specification (RFC 2460) was published in December 1998.
• Basic Socket Interface Extensions for IPv6 (RFC 2553) was published in March 1999.
• Dynamic Host Configuration Protocol for IPv6 (DHCPv6) (RFC 3315) was published in July 2003.
• Mobility Support in IPv6 (RFC 3775) was published in June 2004.
• IPv6 Flow Label Specification (RFC 3697) was published in March 2004.
• IP Version 6 Addressing Architecture (RFC 4291) was published in February 2006.
• IPv6 Node Requirements (RFC 4294) was published in April 2006.
The IPv4 was first developed in the 1970s, and the RFC 791 (IPv4) functionality was published in 1981. Because of the rapid expansion of the internet, IPv4 address space has been getting consumed over the years after 1981.
Internet Engineering Task Force (IETF) started working on a new protocol from 1994, which is going to replace IPv4.
Following are the major RFCs related with IPv6, which will replace IPv4 in near future.
• Internet Protocol, Version 6 (IPv6) Specification (RFC 2460) was published in December 1998.
• Basic Socket Interface Extensions for IPv6 (RFC 2553) was published in March 1999.
• Dynamic Host Configuration Protocol for IPv6 (DHCPv6) (RFC 3315) was published in July 2003.
• Mobility Support in IPv6 (RFC 3775) was published in June 2004.
• IPv6 Flow Label Specification (RFC 3697) was published in March 2004.
• IP Version 6 Addressing Architecture (RFC 4291) was published in February 2006.
• IPv6 Node Requirements (RFC 4294) was published in April 2006.
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