C
HAPTER
41
| IP Interface Commands
IPv6 Interface
– 933 –
â—† If a duplicate address is detected on the local segment, this interface
will be disabled and a warning message displayed on the console.
â—† The no ipv6 enable command does not disable IPv6 for an interface
that has been explicitly configured with an IPv6 address.
EXAMPLE
In this example, IPv6 is enabled on VLAN 1, and the link-local address
FE80::2E0:CFF:FE00:FD/64 is automatically generated by the switch.
Console(config)#interface vlan 1
Console(config-if)#ipv6 enable
Console(config-if)#end
Console#show ipv6 interface
Vlan 1 is up
IPv6 is enable.
Link-local address:
FE80::2E0:CFF:FE00:FD/64
Global unicast address(es):
2001:DB8:2222:7273::72/96, subnet is 2001:DB8:2222:7273::/96
Joined group address(es):
FF02::1:FF00:72
FF02::1:FF00:FD
FF02::1
IPv6 link MTU is 1280 bytes
ND DAD is enabled, number of DAD attempts: 3.
ND retransmit interval is 1000 milliseconds
Console#
RELATED COMMANDS
ipv6 address link-local (931)
show ipv6 interface (935)
ipv6 mtu This command sets the size of the maximum transmission unit (MTU) for
IPv6 packets sent on an interface. Use the no form to restore the default
setting.
SYNTAX
ipv6 mtu size
no ipv6 mtu
size - Specifies the MTU size. (Range: 1280-65535 bytes)
DEFAULT SETTING
1500 bytes
COMMAND MODE
Interface Configuration (VLAN)
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