C
HAPTER
41
| IP Interface Commands
IPv6 Interface
– 944 –
â—† If the link-local address for an interface is changed, duplicate address
detection is performed on the new link-local address, but not for any of
the IPv6 global unicast addresses already associated with the interface.
EXAMPLE
The following configures five neighbor solicitation attempts for addresses
configured on VLAN 1. The show ipv6 interface command indicates that the
duplicate address detection process is still on-going.
Console(config)#interface vlan 1
Console(config-if)#ipv6 nd dad attempts 5
Console(config-if)#end
Console#show ipv6 interface
Vlan 1 is up
IPv6 is stalled.
Link-local address:
FE80::200:E8FF:FE90:0/64 [TENTATIVE]
Global unicast address(es):
2009:DB9:2229::79, subnet is 2009:DB9:2229:0::/64 [TENTATIVE]
Joined group address(es):
FF01::1/16
FF02::1/16
FF02::1:FF00:79/104
FF02::1:FF90:0/104
MTU is 1500 bytes.
ND DAD is enabled, number of DAD attempts: 5.
ND retransmit interval is 1000 milliseconds
Console#
RELATED COMMANDS
ipv6 nd ns-interval (944)
show ipv6 neighbors (946)
ipv6 nd ns-interval This command configures the interval between transmitting IPv6 neighbor
solicitation messages on an interface. Use the no form to restore the
default value.
SYNTAX
ipv6 nd ns-interval milliseconds
no ipv6 nd ns-interval
milliseconds - The interval between transmitting IPv6 neighbor
solicitation messages. (Range: 1000-3600000)
DEFAULT SETTING
1000 milliseconds is used for neighbor discovery operations
COMMAND MODE
Interface Configuration (VLAN)
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