Web Management Guide

Table Of Contents
Chapter 14
| IP Configuration
Setting the Switch’s IP Address (IP Version 6)
– 491
Figure 313: Configuring RA Guard for an IPv6 Interface
Configuring an IPv6
Address
Use the IP > IPv6 Configuration (Add IPv6 Address) page to configure an initial 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 486)
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.