Fortinet FortiSwitch-548B v. 5.2.0.2 Administration Manual page 556

ICMPv6 Duplicate Address Detects: Number of duplicate addresses detected by interface.
10.3.2 Configuration Commands
10.3.2.1 ipv6 forwarding
This command enables IPv6 forwarding on the switch.
Syntax
Ipv6 forwarding
no ipv6 forwarding
no - This command disables IPv6 forwarding on the switch.
Default Setting
Enabled
Command Mode
Global Config
10.3.2.2 ipv6 hop-limit
This command defines the unicast hop count used in ipv6 packets originated by the node. The value is
also included in router advertisements. Valid values for <hops> are 1-64 inclusive. The default "not
configured" means that a value of zero is sent in router advertisements and a value of 64 is sent in
packets originated by the node. Note that this is not the same as configuring a value of 64.
Syntax
ipv6 hop-limit <hops>
no ipv6 hop-limit
no – Use this command to disable the forwarding of IPv6 hop-limit.
Default Setting
not configured
Command Mode
Global Config
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