H3C Technologies H3C SecPath F1000-E User Manual

Page 714

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Automatic generation—The firewall automatically generates a link-local address for an interface

according to the link-local address prefix (FE80::/10) and the link-layer address of the interface.

Manual assignment—IPv6 link-local addresses can be assigned manually.

NOTE:

An interface can have only one link-local address. To avoid link-local address conflicts, use the
automatic generation method.

Manual assignment takes precedence over automatic generation. If you first use automatic generation
and then manual assignment, the manually assigned link-local address will overwrite the automatically

generated one. If you first use manual assignment and then automatic generation, the automatically
generated link-local address will 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:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter interface view.

interface interface-type
interface-number

N/A

3.

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 configure an IPv6 link-local address manually:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter interface view.

interface interface-type
interface-number

N/A

3.

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.

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