Ipv6 Address Auto Link-Local - HP A5120 EI Series Command Reference Manual

[Sysname-Vlan-interface100] ipv6 address auto

ipv6 address auto link-local

Syntax
ipv6 address auto link-local
undo ipv6 address auto link-local
View
Interface view
Default level
2: System level
Parameters
None
Description
Use the ipv6 address auto link-local command to automatically generate a link-local address for an
interface.
Use the undo ipv6 address auto link-local command to remove the automatically generated link-local
address for the interface.
By default, no link-local address is configured on an interface, but it will automatically be generated after
a global IPv6 unicast address is configured for the interface.
NOTE:

After an IPv6 global unicast address is configured for an interface, a link-local address is generated
automatically. The automatically generated link-local address is the same as the one generated by using the ipv6
address auto link-local command.

The undo ipv6 address auto link-local command can only remove the link-local addresses generated through
the ipv6 address auto link-local command. After the undo ipv6 address auto link-local command is used on
an interface that has an IPv6 global unicast address configured, the interface still has a link-local address. If the
interface has no IPv6 global unicast address configured, it will have no link-local address.

Manual assignment takes precedence over automatic generation. If you first adopt automatic generation and
then manual assignment, the manually assigned link-local address will overwrite the automatically generated
one. If you first adopt manual assignment and then automatic generation, the automatically generated link-local
address will not take effect and the link-local address of an interface is still the manually assigned one. If you
delete the manually assigned address, the automatically generated link-local address is validated. For more
information about manual assignment of an IPv6 link-local address, see the ipv6 address link-local command.
Examples
# Configure VLAN-interface 100 to automatically generate a link-local address.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ipv6 address auto link-local
159