IP Configuration
271
Instruction Manual - NXA-ENET8-POE+
The following table lists the options on this page:
Perform these steps to configure an IPv6 address:
1.
Click
System
>
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
.
System - IPv6 Configuration Options
VLAN
ID of a configured VLAN which is to be used for management access. By default, all ports on the
switch are members of VLAN 1. However, the management station can be attached to a port
belonging to any VLAN, as long as that VLAN has been assigned an IP address. (Range: 1-4094)
Address Type
Defines the address type configured for this interface.
• Global - Configures an IPv6 global unicast address with a full IPv6 address including the
network prefix and host address bits, followed by a forward slash, and a decimal value indicating
how many contiguous bits (from the left) of the address comprise the prefix (i.e., the network
portion of the address).
• EUI-64 (Extended Universal Identifier) - Configures an IPv6 address for an interface using an
EUI-64 interface ID in the low order 64 bits.
When using EUI-64 format for the low-order 64 bits in the host portion of the address, the value
entered in the IPv6 Address field includes the network portion of the address, and the prefix
length indicates how many contiguous bits (starting at the left) of the address comprise the
prefix (i.e., the network portion of the address). Note that the value specified in the IPv6
Address field may include some of the high-order host bits if the specified prefix length is less
than 64 bits. If the specified prefix length exceeds 64 bits, then the bits used in the network
portion of the address will take precedence over the interface identifier.
IPv6 addresses are 16 bytes long, of which the bottom 8 bytes typically form a unique host
identifier based on the device's MAC 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.
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.
• Link Local - Configures an IPv6 link-local address. The address prefix must be in the range of
FE80~FEBF. You can configure only one link-local address per interface.
The specified address replaces a link-local address that was automatically generated for the
interface.
IPv6 Address
IPv6 address assigned to this interface.
FIG. 325
Configuring an IPv6 Address