HP 6200YL - Manual (Page 84)

IPv6 Addressing Configuration
Configuring a Static IPv6 Address on a VLAN
< prefix-length >: Specifies the number of bits in the network
prefix. If you are using the
eui-64 option, this value must be 64.
eui-64: Specifies using the Extended Unique Identifier format
to create a device identifier based on the VLAN MAC address.
Refer to “Extended Unique Identifier (EUI)” on page 3-14.
After verification of uniqueness by DAD, the lifetime of a
statically configured IPv6 address assigned to a VLAN is set
to permanent, and is configured as a preferred address. (Refer
to “IPv6 Address Deprecation” on page 3-24.)
The no form of the command erases the specified address and,
if no other IPv6-enabling command is configured on the VLAN,
disables IPv6 on the VLAN. (Refer to “Disabling IPv6 on a
VLAN” on page 4-15.)
To view the currently configured static IPv6 addresses per-VLAN, use show run.
To view all currently configured IPv6 unicast addresses, use the following:
■ show ipv6 (Lists IPv6 addresses for all VLANs configured on the switch.)
■ show ipv6 vlan < vid > (Lists IPv6 addresses configured on VLAN < vid >.)
For more information, refer to “View the Current IPv6 Addressing Configura­
tion” on page 4-21.
Operating Notes
■ With IPv6 enabled, the switch determines the default IPv6 router for the
VLAN from the router advertisements it receives. (Refer to “Router Access
and Default Router Selection” on page 4-28.)
■ If DHCPv6 is configured on a VLAN, then configuring a static global
unicast address on the VLAN removes DHCPv6 from the VLAN's config­
uration and deletes the DHCPv6-assigned global unicast address.
■ Note that for a statically configured global unicast address to be routable,
a gateway router must be transmitting router advertisements on the
VLAN.
■ If an autoconfigured global unicast address already exists for the same
subnet as a new, statically configured global unicast address, the statically
configured address is denied. In the reverse case, you can add an auto­
config command to the VLAN configuration, but it will not be imple­
mented unless the static address is removed from the configuration.
4-14