System information

IP Interface Commands
4-231
4
• If a duplicate address is detected, a warning message is sent to the console.
• If the router advertisements have the “other stateful configuration” flag set, the
switch will attempt to acquire other non-address configuration information
(such as a default gateway).
Example
This example assigns two dynamic global unicast address of
2005::212:CFFF:FE0B:4600 and 3FFE:501:FFFF:100:212:CFFF:FE0B:4600 to the
switch.
Related Commands
ipv6 address (4-229)
show ipv6 interface (4-234)
ipv6 address eui-64
This command configures an IPv6 address for an interface using an EUI-64
interface ID in the low order 64 bits 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-prefix/prefix-length eui-64
no ipv6 address [ipv6-prefix/prefix-length eui-64]
• ipv6-prefix - The IPv6 network portion of the address assigned to the
interface. The prefix 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.
• prefix-length - 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).
Console(config-if)#ipv6 address autoconfig
Console(config-if)#end
Console#show ipv6 interface
Vlan 1 is up
IPv6 is enable.
Link-local address:
FE80::212:CFFF:FE0B:4600/64
Global unicast address(es):
2005::212:CFFF:FE0B:4600, subnet is 2005:0:0:0::/64
3FFE:501:FFFF:100:212:CFFF:FE0B:4600, subnet is 3FFE:501:FFFF:100::/64
Joined group address(es):
FF01::1/16
FF02::1/16
FF02::1:FF0B:4600/104
MTU is 1500 bytes.
ND DAD is enabled, number of DAD attempts: 1.
ND retransmit interval is 1000 milliseconds
Console#