H3C s3100 series Command Manual page 1021

Parameters
value: Number of attempts to send a neighbor solicitation message for duplicate address detection, in
the range of 0 to 600. The default value is "1". When it is set to 0, the duplicate address detection is
disabled.
Description
Use the ipv6 nd dad attempts command to configure the attempts to send a neighbor solicitation
message for duplicate address detection.
Use the undo ipv6 nd dad attempts command to restore the attempts to send a neighbor solicitation
message for duplicate address detection to the default.
By default, the number of attempts to send a neighbor solicitation message for duplicate address
detection is 1.
Related commands: display ipv6 interface.
Examples
# Set the attempts to send a neighbor solicitation message for duplicate address detection to 20.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Vlan-interface 1
[Sysname-Vlan-interface1] ipv6 nd dad attempts 20
ipv6 nd hop-limit
Syntax
ipv6 nd hop-limit value
undo ipv6 nd hop-limit
View
System view
Parameters
value: Number of hops, in the range of 0 to 255.
Description
Use the ipv6 nd hop-limit command to configure the hop limit of ICMPv6 reply packets.
Use the undo ipv6 nd hop-limit command to restore the default.
By default, the hop limit of ICMPv6 reply packets is 64.
Examples
# Set the hop limit of ICMPv6 reply packets to 100.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] ipv6 nd hop-limit 100
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