C
HAPTER
16
| IP Configuration
Setting the Switch’s IP Address (IP Version 6)
– 435 –
address. The EUI-64 specification is designed for devices that
use an extended 8-byte MAC address. For devices that still use a
6-byte MAC address (also known as EUI-48 format), it must be
converted into EUI-64 format by inverting the universal/local bit
in the address and inserting the hexadecimal number FFFE
between the upper and lower three bytes of the MAC address.
For example, if a device had an EUI-48 address of 28-9F-18-1C-
82-35, the global/local bit must first be inverted to meet EUI-64
requirements (i.e., 1 for globally defined addresses and 0 for
locally defined addresses), changing 28 to 2A. Then the two
bytes FFFE are inserted between the OUI (i.e., organizationally
unique identifier, or company identifier) and the rest of the
address, resulting in a modified EUI-64 interface identifier of 2A-
9F-18-FF-FE-1C-82-35.
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This host addressing method allows the same interface identifier
to be used on multiple IP interfaces of a single device, as long as
those interfaces are attached to different subnets.
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Link Local – Configures an IPv6 link-local address.
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The address prefix must be FE80.
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You can configure only one link-local address per interface.
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The specified address replaces a link-local address that was
automatically generated for the interface.
◆ IPv6 Address – IPv6 address assigned to this interface.
WEB INTERFACE
To configure an IPv6 address:
1. Click IP, IPv6 Configuration.
2. Select Add IPv6 Address from the Action list.
3. Specify the VLAN to configure, select the address type, and then enter
an IPv6 address and prefix length.
4. Click Apply.
Figure 261: Configuring an IPv6 Address
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