Ipv6 address autoconfig, Slaa – Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) User Manual
Page 682
IPv6 Commands
Software Reference for x310 Series Switches
27.4
AlliedWare Plus
TM
Operating System - Version 5.4.4C
C613-50046-01 REV A
ipv6 address autoconfig
Use this command to enable IPv6 stateless address autoconfiguration (SLAAC) for an
interface. This configures an IPv6 address on an interface derived from the MAC address
on the interface.
Use the no variant of this command to disable IPv6 SLAAC on an interface. Note that if no
global addresses are left after removing all IPv6 autoconfigured addresses then IPv6 is
disabled.
Syntax
ipv6 address autoconfig
no ipv6 address autoconfig
Mode
Interface Configuration for a VLAN interface.
Usage
The
command enables automatic configuration of IPv6
addresses using stateless autoconfiguration on an interface and enables IPv6, but does
not enable IPv6 forwarding. See
ipv6 forwarding command on page 27.7
for further
description and examples.
IPv6 hosts can configure themselves when connected to an IPv6 network using ICMPv6
(Internet Control Message Protocol version 6) router discovery messages. Configured
routers respond with a Router Advertisement (RA) containing configuration parameters
for IPv6 hosts.
The SLAAC process derives the interface identifier of the IPv6 address from the MAC
address of the interface. When applying SLAAC to an interface, note that the MAC address
of the default VLAN is applied to the interface if the interface does not have its own MAC
address.
If SLAAC is not suitable then a network can use stateful configuration with DHCPv6
(Dynamic Host Configuration Protocol version 6) Relay, or hosts can be configured
statically. See
for the DHCPv6 Relay server command
description and examples. For introduction and configuration information about DHCPv6
Relay agent see
“DHCP Relay Agent Introduction” on page 63.7
and
DHCP Relay Agent” on page 63.7
.
Note that link-local addresses are retained in the system until they are negated by using
the no variant of the command that established them. See the
glossary entry, and the
command for more information.
Also note that the link-local address is retained in the system if the global address is
removed using another command, which was not used to establish the link-local address.
For example, if a link local address is established with the
command then it
will not be removed using a
no ipv6 address
command.