Ipv6 Management Overview; Ipv6 Addressing - Dell PowerConnect B-FCXs Configuration Manual

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IPv6 management overview

This chapter describes the IPv6 management features, including command syntax and
management examples.
IPv6 management overview
IPv6 was designed to replace IPv4, the Internet protocol that is most commonly used currently
throughout the world. IPv6 increases the number of network address bits from 32 (IPv4) to 128,
which provides more than enough unique IP addresses to support all of the network devices on the
planet into the future. IPv6 is expected to quickly become the network standard.
Dell PowerConnect devices that support IPv6 may be used as management hosts. Interfaces on
these devices are configured with IPv6 addresses, but do not have full IPv6 routing enabled. IPv6 is
available on all Dell PowerConnect devices that are running Layer 2, base Layer 3, or full Layer 3
software images.
NOTE
Dell PowerConnect devices can serve as management hosts on an IPv6 network. However, IPv6
routing functionality is not supported for these devices.

IPv6 addressing

IPv4 is limited because of the 32-bit addressing format, which cannot satisfy potential increases in
the number of users, geographical needs, and emerging applications. To address this limitation,
IPv6 introduces a new 128-bit addressing format.
An IPv6 address is composed of 8 fields of 16-bit hexadecimal values separated by colons (:).
Figure 25
FIGURE 25
HHHH
As shown in
value.The following is an example of an IPv6 address.
2001:0000:0000:0200:002D:D0FF:FE48:4672
Note that this IPv6 address includes hexadecimal fields of zeros. To make the address less
cumbersome, you can do the following:
•
•
When specifying an IPv6 address in a command syntax, keep the following in mind:
•
198
shows the IPv6 address format.
IPv6 address format
Network Prefix
HHHH HHHH HHHH HHHH
128 Bits
HHHH = Hex Value 0000 – FFFF
Figure 25, HHHH is a 16-bit hexadecimal value, while H is a 4-bit hexadecimal
Omit the leading zeros; for example, 2001:0:0:200:2D:D0FF:FE48:4672.
Compress the successive groups of zeros at the beginning, middle, or end of an IPv6 address
to two colons (::) once per address; for example, 2001::200:2D:D0FF:FE48:4672.
You can use the two colons (::) only once in the address to represent the longest successive
hexadecimal fields of zeros
Interface ID
HHHH HHHH HHHH
PowerConnect B-Series FCX Configuration Guide
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