Chapter 30
| IP Interface Commands
IPv6 Interface
– 929 –
Example
This example assigns a link-local address of FE80::269:3EF9:FE19:6779 to VLAN 1.
Note that a prefix in the range of FE80~FEBF 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 FE80::269:3EF9:FE19:6779 link-local
Console(config-if)#end
Console#show ipv6 interface
VLAN 1 is up
IPv6 is enabled
Link-local address:
fe80::269:3ef9:fe19:6779%1/64
Global unicast address(es):
2001:db8:0:1:7272:cfff:fe83:3466/64, subnet is 2001:db8:0:1::/64[EUI]
2001:db8:2222:7272::72/96, subnet is 2001:db8:2222:7272::/96
Joined group address(es):
ff02::1:ff19:6779
ff02::1:ff00:72
ff02::1:ff83:3466
ff02::1
IPv6 link MTU is 1500 bytes
ND DAD is enabled, number of DAD attempts: 3.
ND retransmit interval is 1000 milliseconds
ND advertised retransmit interval is 0 milliseconds
ND reachable time is 30000 milliseconds
ND advertised reachable time is 0 milliseconds
ND advertised router lifetime is 1800 seconds
Console#
Related Commands
ipv6 enable (929)
show ipv6 interface (932)
ipv6 enable This command enables IPv6 on an interface that has not been configured with an
explicit IPv6 address. Use the no form to disable IPv6 on an interface that has not
been configured with an explicit IPv6 address.
Syntax
[no] ipv6 enable
Default Setting
IPv6 is disabled
Command Mode
Interface Configuration (VLAN)
Command Usage
â—† This command enables IPv6 on the current VLAN interface and automatically
generates a link-local unicast address. The address prefix uses FE80, and the
host portion of the address is generated by converting the switch’s MAC
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