HPE 5900 series

202
undo ipv6 address auto link-local
Default
No link-local address is configured on an interface. A link-local address is automatically generated
after an IPv6 global unicast address is configured for the interface.
Views
Interface view
Predefined user roles
network-admin
Usage guidelines
Link-local addresses are used for neighbor discovery and stateless autoconfiguration on the local
link. Packets using link-local addresses as the source or destination addresses cannot be forwarded
to other links.
After an IPv6 global unicast address is configured for an interface, an automatically generated
link-local address is the same as the one generated by using the ipv6 address auto link-local
command.
Only use the undo ipv6 address auto link-local command to 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 has 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 overwrites the automatically generated address.
•
If you first use manual assignment and then automatic generation, both of the following occur:
 The automatically generated link-local address does not take effect.
 The link-local address of an interface is still the manually assigned address.
If you delete the manually assigned address, the automatically generated link-local address takes
effect.
For more information about manually 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
Related commands
ipv6 address link-local
ipv6 address eui-64
Use ipv6 address eui-64 to configure an EUI-64 IPv6 address for an interface.
Use undo ipv6 address eui-64 to remove the EUI-64 IPv6 address of the interface.
Syntax
ipv6 address { ipv6-address prefix-length | ipv6-address/prefix-length } eui-64