HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Services Command Referen - Page 190

ipv6 nd dad attempts, Examples, Syntax, Default, Views, Predefined user roles, Parameters

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If the O flag is set to 1, the host uses stateful autoconfiguration (for example, from a DHCPv6 server) to obtain configuration information other than IPv6 address. Otherwise, the host uses stateless autoconfiguration. Examples # Configure the host to obtain configuration information other than IPv6 address through stateless autoconfiguration. system-view [Sysname] interface vlan-interface 100 [Sysname-Vlan-interface100] undo ipv6 nd autoconfig other-flag ipv6 nd dad attempts Use ipv6 nd dad attempts to configure the number of attempts to send an NS message for DAD. Use undo ipv6 nd dad attempts to restore the default. Syntax ipv6 nd dad attempts value undo ipv6 nd dad attempts Default The number of attempts to send an NS message for DAD is 1. Views Interface view Predefined user roles network-admin Parameters value: Number of attempts to send an NS message for DAD, in the range of 0 to 600. If it is set to 0, DAD is disabled. Usage guidelines An interface sends an NS message for DAD after obtaining an IPv6 address. If the interface does not receive a response within a specific time (set by the ipv6 nd ns retrans-timer command), it continues to send an NS message. If the interface still does not receive a response after the number of attempts reaches the threshold (set by the ipv6 nd dad attempts command), the obtained address is considered usable. Examples # Set the number of attempts to send an NS message for DAD to 20. system-view [Sysname] interface vlan-interface 100 [Sysname-Vlan-interface100] ipv6 nd dad attempts 20 Related commands • display ipv6 interface • ipv6 nd ns retrans-timer 182

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182
If the O flag is set to 1, the host uses stateful autoconfiguration (for example, from a DHCPv6 server) to
obtain configuration information other than IPv6 address. Otherwise, the host uses stateless
autoconfiguration.
Examples
# Configure the host to obtain configuration information other than IPv6 address through stateless
autoconfiguration.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] undo ipv6 nd autoconfig other-flag
ipv6 nd dad attempts
Use
ipv6 nd dad attempts
to configure the number of attempts to send an NS message for DAD.
Use
undo ipv6 nd dad attempts
to restore the default.
Syntax
ipv6
nd
dad
attempts
value
undo
ipv6
nd
dad
attempts
Default
The number of attempts to send an NS message for DAD is 1.
Views
Interface view
Predefined user roles
network-admin
Parameters
value
: Number of attempts to send an NS message for DAD, in the range of 0 to 600. If it is set to 0, DAD
is disabled.
Usage guidelines
An interface sends an NS message for DAD after obtaining an IPv6 address.
If the interface does not receive a response within a specific time (set by the
ipv6 nd ns retrans-timer
command), it continues to send an NS message.
If the interface still does not receive a response after the number of attempts reaches the threshold (set by
the
ipv6 nd dad attempts
command), the obtained address is considered usable.
Examples
# Set the number of attempts to send an NS message for DAD to 20.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ipv6 nd dad attempts 20
Related commands
•
display ipv6 interface
•
ipv6 nd ns retrans-timer