Chapter 15
| IP Configuration
Setting the Switch’s IP Address (IP Version 6)
– 630 –
Configuring an
IPv6 Address
Use the IP > IPv6 Configuration (Add IPv6 Address) page to configure an IPv6
interface for management access over the network, or for creating an interface to
multiple subnets.
Command Usage
◆ All IPv6 addresses must be formatted according to RFC 2373 “IPv6 Addressing
Architecture,” using 8 colon-separated 16-bit hexadecimal values. One double
colon may be used in the address to indicate the appropriate number of zeros
required to fill the undefined fields.
◆ The switch must always be configured with a link-local address. Therefore,
explicitly enabling IPv6 (see “Configuring IPv6 Interface Settings” on page 626)
or manually assigning a global unicast address will also automatically generate
a link-local unicast address. The prefix length for a link-local address is fixed at
64 bits, and the host portion of the default address is based on the modified
EUI-64 (Extended Universal Identifier) form of the interface identifier (i.e., the
physical MAC address). Alternatively, you can manually configure the link-local
address by entering the full address with a network prefix in the range of
FE80~FEBF.
◆ To connect to a larger network with multiple subnets, you must configure a
global unicast address. There are several alternatives to configuring this
address type:
■
It can be manually configured by specifying the entire network prefix and
prefix length, and using the EUI-64 form of the interface identifier to
automatically create the low-order 64 bits in the host portion of the
address.
■
You can also manually configure the global unicast address by entering the
full address and prefix length.
◆ You can configure multiple IPv6 global unicast addresses per interface, but only
one link-local address per interface.
◆ If a duplicate link-local address is detected on the local segment, this interface
is disabled and a warning message displayed on the console. If a duplicate
global unicast address is detected on the network, the address is disabled on
this interface and a warning message displayed on the console.
◆ When an explicit address is assigned to an interface, IPv6 is automatically
enabled, and cannot be disabled until all assigned addresses have been
removed.
Parameters
These parameters are displayed:
◆ VLAN – ID of a configured VLAN which is to be used for management access, or
for creating an interface to multiple subnets. By default, all ports on the switch
are members of VLAN 1. However, the management station can be attached to
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