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Obtaining an IPv6 Address
Link Local Address — There are several ways to dynamically configure IPv6
addresses. The simplest method is to automatically generate a “link local” address
(identified by an address prefix of FE80). This address type makes the switch
accessible over IPv6 for all devices attached to the same local subnet.
To generate an IPv6 link local address for the switch, complete the following steps:
1. From the Global Configuration mode prompt, type “interface vlan 1” to access
the interface-configuration mode. Press <Enter>.
2. Type “ipv6 enable” and press <Enter>.
Address for Multi-segment Network — To generate an IPv6 address that can be
used in a network containing more than one subnet, the switch can be configured to
automatically generate a unique host address based on the local subnet address
prefix received in router advertisement messages. (DHCP for IPv6 will also be
supported in future software releases.)
To dynamically generate an IPv6 host address for the switch, complete the following
steps:
1. From the Global Configuration mode prompt, type “interface vlan 1” to access
the interface-configuration mode. Press <Enter>.
Console(config)#interface vlan 1 45-1
Console(config-if)#ipv6 enable 60-2
Console(config-if)#end
Console#show ipv6 interface 60-10
Vlan 1 is up
IPv6 is enable.
Link-local address:
FE80::200:E8FF:FE90:0/64
Global unicast address(es):
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#