H3C SOHO IE4300, Command Reference Manual

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Predefined user roles
network-admin
Usage guidelines
The O flag in RA advertisements determines whether receiving hosts use stateful autoconfiguration
to obtain configuration information other than IPv6 addresses.
•
If the O flag is set to 1 in RA advertisements, receiving hosts use stateful autoconfiguration (for
example, from a DHCPv6 server) to obtain configuration information other than IPv6
addresses.
•
If the O flag is set to 0 in RA advertisements, receiving hosts use stateless autoconfiguration to
obtain configuration information other than IPv6 addresses.
Examples
# Set the O flag to 0 in RA advertisements to be sent.
<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 set 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 times
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
times
: Specifies the 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 the time specified by using
ipv6 nd ns
retrans-timer
, it resends an NS message.
If the interface receives no response after making the maximum sending attempts (set by using
ipv6 nd dad attempts
), the interface uses the obtained address.
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