Avaya IPv6 Manual de usuario Pagina 20

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Configuring IPv6 Services
1-20 118428-A Rev. A
IPv4-Compatible Address
The IPv4-compatible address, which includes an IPv4 address in the low-order 32
bits, is intended for IPv6 nodes that need to interoperate with IPv4 nodes.
F
igure 1-3 shows the format of an IPv4-compatible address.
Figure 1-3. IPv4-Compatible Unicast Address Format
Address Formats
The format for representing an IPv6 address is
n:n:n:n:n:n:n:n
n is the hexadecimal representation of 16 bits in the address. For example:
FF01:0:0:0:0:0:0:43
Each nonzero field must contain at least one numeral. Within a given hexadecimal
field, however, leading 0s are not required.
Certain classes of IPv6 addresses commonly include multiple contiguous fields
containing hexadecimal 0. Our sample address includes five contiguous fields
containing 0. These fields can be represented by double colons (::). For example:
FF01::43
A double colon can also be used to compress the leading zero fields in a
hexadecimal address. A double colon can appear once in an address.
IPv4 address
0000 0000 0000 0000 0000 0000
96 bits
32 bits
IPV0002A
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