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ipv6 address link-local
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60
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
Command Mode
Interface Configuration (VLAN)
Command Usage
• The address specified with this command replaces a link-local address that
was automatically generated for the interface.
• You can configure multiple IPv6 global unicast addresses per interface, but
only one link-local address per interface.
• If a duplicate address is detected, a warning message is sent to the console.
Example
This example assigns a link-local address of FE80::269:3EF9:FE19:6779 to
VLAN 1. Note that the prefix FE80 is required for link-local addresses, and the first
16-bit group in the host address is padded with a zero in the form 0269.
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::269:3EF9:FE19:6779/64
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:FF19:6779/104
MTU is 1500 bytes.
ND DAD is enabled, number of DAD attempts: 1.
ND retransmit interval is 1000 milliseconds
Console#