Disables host autoconfiguration by turning off the A-bit in RAs. This requires hosts to acquire prefixes through manual or DHCPv6 assignments. Depending on the host implementation, a host that was previously configured by an RA to use autoconfiguration will not be affected by a later RA that includes no-autoconfig (unless the host disconnects and reconnects to the network).


To re-enable host autoconfiguration (turn on the A-bit in RAs) for a given RA, use ipv6 nd ra prefix again, without invoking no-autoconfig.

Default: A-bit turned on— host autoconfig turned on.