F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Configuration Guide-6PW100

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• If you first use automatic generation and then manual assignment, the manually assigned link-local
address overwrites the automatically generated one.
• If you first use manual assignment and then automatic generation, the automatically generated
link-local address does not take effect and the link-local address is still the manually assigned one.
If you delete the manually assigned address, the automatically generated link-local address is
validated.
To configure automatic generation of an IPv6 link-local address for an interface:
Ste
p
Command Remarks
927. Enter system view.
system-view N/A
928. Enter interface view.
interface interface-type
interface-number
N/A
929. Configure the interface
to automatically
generate an IPv6
link-local address.
ipv6 address auto link-local
Optional.
By default, no link-local address is
configured on an interface.
After an IPv6 global unicast address is
configured on the interface, a link-local
address is generated automatically.
To manually configure an IPv6 link-local address:
Ste
p
Command Remarks
930. Enter system view. system-view N/A
931. Enter interface view.
interface interface-type
interface-number
N/A
932. Configure an IPv6
link-local address
manually.
ipv6 address ipv6-address
link-local
Optional.
By default, no link-local address is
configured on an interface.
After an IPv6 global unicast address is
configured on the interface, a link-local
address is generated automatically.
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. If a link-local address is manually assigned to an interface,
this manual link-local address takes effect. If the manually assigned link-local address is removed, the
automatically generated link-local address takes effect.
The undo ipv6 address auto link-local command only removes the link-local addresses generated
through the ipv6 address auto link-local command. However, if an IPv6 global unicast address is already
configured for an interface, the interface still has a link-local address because the system automatically
generates one for the interface. If no IPv6 global unicast address is configured, the interface has no
link-local address.