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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 (41-29)
show ipv6 neighbors (41-30)
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
• 0 milliseconds is advertised in router advertisements
Command Mode
Interface Configuration (VLAN)
Command Usage
• When a non-default value is configured, the specified interval is used both for
router advertisements and by the router itself.
• This command specifies the interval between transmitting neighbor
solicitation messages when resolving an address, or when probing the
41-29
Basic IP Configuration
41