ipv6的表示（IPv6 representation）.docVIP

ipv6的表示（IPv6 representation） The IPv6 address is how to say? IPv4 addresses into dotted decimal format, 32 bit address 8 is divided into 4 groups, each 8 bit written in decimal, dotted with intermediate. And the 128 bit address of the IPv6 in 16 as a group, each 16 bit block in 4 of sixteen hexadecimal numbers, separated by a colon, said sixteen hexadecimal format for colon. For example: 21DA:00D3:0000:2F3B:02AA:00FF:FE28:9C5A is a complete IPv6. IPv6 said the special case of the following address: Each IPv6 address in the 16 groups in the leading zero can simplify the removal, but each packet must be kept for at least one digit. In the example above address, remove the leading zero after 21DA3:0:2F3B:2AA:FF:FE28:9C5A can be written as. May contain zero sequence long some address, to further simplify the notation, can also be continuous zero with adjacent colon sixteen hexadecimal format, with a double colon :. :: in an address can appear only once, the symbols can also be used to compress the adjacent front and rear address in continuous zero. For example, 1080:0:0:0:8:800:200C:417A 0:0:0:0:0:0:0:1, 0:0:0:0:0:0:0:0 address, which can be expressed as 1080: compression format: 8:800:200C:417A,:: 1,::. In the IPv4 and IPv6 mixed environment, sometimes more suitable for using another representation: x:x:x:x:x:x:d.d.d.d, where x is the address of the 6 high order 16 bits grouped sixteen hexadecimal values, D is the 4 low order 8 bits grouped in decimal values (standard IPv4). For example, address 0:0:0:0:0:0:, written in 0:0:0:0:0:FFFF:8 compression form:: :: FFFF.8. To use a text IPv6 address in a URL address, the text should use the symbol [and] to close. For example, the text IPv6 address FEDC:BA98:7654:3210:FEDC:BA98:7654:3210 URL http://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]: 80/index.html for example writing. 3.3.4 IPv6 address is 128 bits, with the address is not to spend a lot of time? IPv6 protocol address auto configuration, this is a plug and play mechanis