ipv6 nd ra halt

Function

The ipv6 nd ra halt command disables the system from sending RA packets.

The undo ipv6 nd ra halt command enables the system to send RA packets.

By default, the system is disabled from sending RA packets.

Format

ipv6 nd ra halt

undo ipv6 nd ra halt

Parameters

None

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

When a device is connected to a host, it periodically sends RA packets to the host. An RA packet carries the IPv6 address prefix and flag information of stateful autoconfiguration. You can run the undo ipv6 nd ra halt command to enable the device to send RA packets.
When a device is connected to another device, that is, there is no host on the network, sending RA packets is not required. The default configuration is recommended.

Prerequisites

The IPv6 function has been enabled in the interface view using the ipv6 enable command.

Precautions

After the ipv6 nd ra halt command is run, the device does not send RA packets. In such a case, the hosts on the network cannot periodically receive information about updated IPv6 prefixes.

You can run the display icmpv6 statistics command to check whether a local device has sent RA packets.

Example

# Disable VLANIF100 from sending RA packets.

<HUAWEI> system-view
[HUAWEI] ipv6
[HUAWEI] interface vlanif 100
[HUAWEI-Vlanif100] ipv6 enable
[HUAWEI-Vlanif100] ipv6 nd ra halt

# Disable GE0/0/1 from sending RA packets.

<HUAWEI> system-view
[HUAWEI] ipv6
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] ipv6 enable
[HUAWEI-GigabitEthernet0/0/1] ipv6 nd ra halt