Configuring Ipv6 Ndp - H3C S5600 Series Operation Manual

Operation Manual – IPv6 Management
H3C S5600 Series Ethernet Switches
Note:
If an IRF fabric port on an H3C S5600 switch is enabled with IRF fabric, no IPv6
address can be configured for the switch. To do so, you need to disable IRF fabric
on all IRF fabric ports.
IPv6 unicast addresses can be configured for only one VLAN interface on an H3C
S5600 Ethernet switch. The total number of global unicast addresses and site-local
addresses on the VLAN interface can be up to four.
After an IPv6 site-local address or 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.
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 the manually assigned
link-local address is deleted, the automatically generated link-local address takes
effect.
You must have carried out the ipv6 address auto link-local command before you
carry out the undo ipv6 address auto link-local command. However, if an IPv6
site-local address or 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 global unicast
address is configured, the interface has no link-local address.

1.2.2 Configuring IPv6 NDP

I. 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 statically through manual configuration.
You can configure a static neighbor entry in two ways:
Mapping a VLAN interface to an IPv6 address and a link-layer address
Mapping a port in a VLAN to an IPv6 address and a link-layer address
If you configure a static neighbor entry in the second way, make sure the corresponding
VLAN interface exists. In this case, the device associates the VLAN interface to the
IPv6 address to uniquely identify a static neighbor entry.
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Chapter 1 IPv6 Configuration