The ipv6 nd autoconfig managed-address-flag command sets the flag bit indicating that the routable IPv6 address can get through the stateful auto configuration.
The undo ipv6 nd autoconfig managed-address-flag command clears the flag bit.
By default, the "managed address configuration" flag (M flag) is not set in the RA message.
Ethernet interface view, Eth-Trunk interface view, Tunnel interface view, VLANIF interface view, BDIF interface view
Usage Scenario
The ipv6 nd autoconfig managed-address-flag command can be run on the Ethernet interfaces and sub-interfaces, GE interfaces and sub-interfaces, Eth-Trunk interfaces and sub-interfaces, and tunnel interfaces.
Prerequisites
The ipv6 enable command has been run in the interface view to enable IPv6.
Configuration Impact
If the ipv6 nd autoconfig managed-address-flag command has been run to set a flag bit for stateful address auto-configuration, a host can still obtain configurations (excluding an IPv6 address) such as the router lifetime, neighbor reachable time, retransmission interval, and PMTU by means of stateful auto-configuration even if the ipv6 nd autoconfig other-flag command has not been run.
You can run the display ipv6 interface command to see that the hosts attached to a routing device have obtained IPv6 addresses by means of stateful or stateless auto-configuration.