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id) 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.
Example
This example uses the general network prefix of 2001:0DB8:0:1::/64 used in an
earlier example, and specifies that the EUI-64 interface identifier be used in the
lower 64 bits of the address.
Console(config)#interface vlan 1
Console(config-if)#ipv6 address 2001:0DB8:0:1::/64 eui-64
Console(config-if)#end
Console#show ipv6 interface
Vlan 1 is up
IPv6 is enable.
Link-local address:
FE80::200:E8FF:FE90:0/64
Global unicast address(es):
2001:DB8::1:200:E8FF:FE90:0, subnet is 2001:DB8:0:1::/64
Joined group address(es):
FF01::1/16
FF02::1/16
FF02::1:FF90:0/104
MTU is 1500 bytes.
ND DAD is enabled, number of DAD attempts: 1.
ND retransmit interval is 1000 milliseconds
Console#
Related Commands
ipv6 address autoconfig (41-10)
show ipv6 interface (41-14)
ipv6 address link-local
This command configures an IPv6 link-local address for an interface and enables
IPv6 on the interface. Use the
no
form without any arguments to remove all
manually configured IPv6 addresses from the interface. Use the
no
form with a
specific address to remove it from the interface.
Syntax
ipv6 address
ipv6-address
link-local
no ipv6 address
[ipv6-address
link-local
]
ipv6-address - The IPv6 address assigned to the interface. The address
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. And the address prefix must be FE80.
Default Setting
No IPv6 addresses are defined
41-13
Basic IP Configuration
41