Configuring Ipv6 Ndp; Configuring A Static Neighbor Entry - H3C S5500-SI Series Operation Manual

Operation Manual – IPv6
H3C S5500-SI Series Ethernet Switches
Configure
an IPv6
link-local
address
Note:
After an IPv6 site-local address or aggregatable global unicast address is
configured for an interface, a link-local address will be 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 link-local address takes effect. If the
manually assigned link-local address is removed, the automatically generated
link-local address takes effect.
The manual assignment takes precedence over the automatic generation. That is, if
you first adopt the automatic generation and then the manual assignment, the
manually assigned link-local address will overwrite the automatically generated one.
If you first adopt the manual assignment and then the 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.
You need to execute the ipv6 address auto link-local command before the undo
ipv6 address auto link-local command. However, if an IPv6 site-local address or
aggregatable 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 site-local address or aggregatable global unicast
address is configured, the interface has no link-local address.

1.4 Configuring IPv6 NDP

1.4.1 Configuring a Static Neighbor Entry

The IPv6 address of a neighbor node can be resolved into a link-layer address
dynamically through NS and NA messages or through a manually configured neighbor
entry.
To do...
Automatically
generate a
link-local
address
Manually assign
a link-local
address for an
interface
1-14
Chapter 1 IPv6 Basics Configuration
Use the command...
ipv6 address auto
link-local
ipv6 address
ipv6-address link-local
Remarks
Optional
By default, after an
IPv6 site-local
address or
aggregatable global
unicast address is
configured for an
interface, a link-local
address will be
generated
automatically.