ipv6 nd autoconfig other-flag

Function

The ipv6 nd autoconfig other-flag command sets the "other configuration" flag (O flag) of stateful autoconfiguration in an RA packet.

The undo ipv6 nd autoconfig other-flag command deletes the O flag of stateful autoconfiguration in an RA packet.

By default, the O flag is not set in the RA packet.

Format

ipv6 nd autoconfig other-flag

undo ipv6 nd autoconfig other-flag

Parameters

None

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

If the O flag is set, a host uses stateful autoconfiguration to obtain other configuration parameters (excluding an IPv6 address), including the router lifetime, neighbor reachable time, retransmission interval, and PMTU.
If the O flag is not set, a host uses stateless autoconfiguration to obtain other configuration parameters, including the router lifetime, neighbor reachable time, retransmission interval, and PMTU. That is, the host obtains other configuration parameters through the RA packet advertised by routers.

Prerequisites

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

Precautions

After the ipv6 nd autoconfig managed-address-flag command is run, a host can obtain other configurations (excluding IPv6 addresses) using stateful autoconfiguration even if the ipv6 nd autoconfig other-flag command is not run.

Example

# Set the O flag of stateful autoconfiguration on VLANIF2.

<HUAWEI> system-view
[HUAWEI] ipv6
[HUAWEI] interface vlanif 2
[HUAWEI-Vlanif2] ipv6 enable
[HUAWEI-Vlanif2] ipv6 nd autoconfig other-flag

# Set the O flag of stateful autoconfiguration on GE0/0/1.

<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 autoconfig other-flag