The ipv6 nd ra hop-limit command sets the maximum number of hops through which IPv6 unicast packets sent by the device are allowed to pass.
The undo ipv6 nd ra hop-limit command restores the default maximum number of hops for an RA message.
By default, the default maximum number of hops for an RA message is 64.
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Usage Scenario
The hop limit is a parameter carried in an RA message. It defines the maximum number of hops that the RA message (which is an IPv6 unicast packet) passes through.
Prerequisites
IPv6 has been enabled on the involved interface using the ipv6 enable command.
Configuration Impact
If the device finds that the hop limit in its received RA message is different from that configured on the device itself, the device will discard this RA message.
Precautions