Chapter 30
| IP Interface Commands
IPv6 Interface
– 930 –
address to modified EUI-64 format (see page 926). This address type makes the
switch accessible over IPv6 for all devices attached to the same local subnet.
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 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 1280 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 address link-local (928)
show ipv6 interface (932)
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)
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