Alcatel-Lucent 7705 Configuration Manual page 64

Common Configuration Tasks
The following example displays the IP configuration output showing the interface
information.
A:ALU-A>config>router# info
#------------------------------------------
# IP Configuration
#------------------------------------------
Creating an IPv6 Network Interface
When configuring an IPv6 interface, a link-local address (FE80::x:x:x:x:x:x:x/64) is
automatically generated after the CLI command ipv6 is given. If the port is already assigned
to the interface when IPv6 is enabled, the link-local address is derived from the port MAC
address. Otherwise, the link-local address is derived from the system MAC address.
In either case, if the configuration file is saved and the node is rebooted, the port will be
assigned to the interface before IPv6 is enabled and the link-local address will be derived
from the port MAC address. This means that the link-local address will change after the node
is rebooted if it was derived from the system MAC address before the reboot.
To avoid having the link-local address change after a reboot, IPv6 on the interface should be
configured in the following order. This will ensure that the link-local address is derived from
the port MAC address and will therefore not change after a reboot.
CLI Syntax:
64
interface "system"
address 10.10.0.4/32
exit
interface "to-ALU-2"
address 10.10.24.4/24
port 1/1/1
ingress
filter ip 10
exit
config>port
config>router
interface ip-int-name
port port-name
ipv6
address ipv6-address/prefix-length
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7705 SAR OS Router Configuration Guide