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Posts Tagged ‘IPv6 subnetting’

CIDR table between IPv4 and IPv6 addresses

April 28th, 2011 No comments

http://www.net6.at/?q=cidr

IPv4 (32bits)       | IPv6 (128bits)
--------------------|------------------------
/32 = Single IP     | /128 = Single IP
/31 = 2             | /127 = 2
/30 = 4             | /126 = 4
/29 = 8             | /125 = 8
/28 = 16            | /124 = 16
/27 = 32            | /123 = 32
/26 = 64            | /122 = 64
/25 = 128           | /121 = 128
/24 = 256           | /120 = 256
/23 = 512           | /119 = 512
/22 = 1,024         | /118 = 1,024
/21 = 2,048         | /117 = 2,048
/20 = 4,096         | /116 = 4,096
/19 = 8,192         | /115 = 8,192
/18 = 16,384        | /114 = 16,384
/17 = 32,768        | /113 = 32,768
/16 = 65,536        | /112 = 65,536
/15 = 131,072       | /111 = 131,072

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