User's Manual

communicate between the nodes attached to the same link.
The IPv6 stateless autoconfiguration mechanism allows the host to generate its own addresses using a
combination of locally available information and information advertised by the routers. The host sends a
router solicitation multicast request for its configuration parameters in the IPv6 network. The source address
of the router solicitation request can be an IP address assigned to the sending interface, or an unspecified
address if no address is assigned to the sending interface.
The routers in the network respond with an RA. The RAs can also be sent at periodic intervals. The RA contains
the network part of the Layer 3 IPv6 address (IPv6 Prefix). The host uses the IPv6 prefix provided by the RA; it
generates the universally unique host part of the address (interface identifier), and combines the two to derive
the complete address. To establish continuous connectivity to the default router, the host starts the neighbor
reachability state machine for the router.
ArubaOS uses Radvd, an open source Linux IPv6 Router Advertisement daemon maintained by Litech Systems
Design.
You can perform the following tasks on the controller to enable, configure, and view the IPv6 RA status on a
VLAN interface:
l Configure IPv6 RA on a VLAN
l Configure Optional Parameters for RA
n Configure neighbor discovery reachable time
n Configure neighbor discovery retransmit time
n Configure RA DNS
n Configure RA hop-limit
n Configure RA interval
n Configure RA lifetime
n Configure RA managed configuration flag
n Configure RA MTU
n Configure RA other configuration flag
n Configure RA Preference
n Configure RA prefix
l View IPv6 RA Status
Configuring an IPv6 RA on a VLAN
You must configure the IPv6 RA functionality on a VLAN for it to send solicited/unsolicited router
advertisements on the IPv6 network. You must configure the following for the IPv6 RA to be operational on a
VLAN:
l IPv6 global unicast address
l enable IPv6 RA
l IPv6 RA prefix
l The advertised IPv6 prefix length must be 64 bits for the stateless address autoconfiguration to be operational.
l You can configure up to three IPv6 prefixes per VLAN interface.
l Each IPv6 prefix must have an on-link interface address configured on the VLAN.
l Ensure you configure the upstream routers to route the packets back to Dell controller.
Dell Networking W-Series ArubaOS 6.4.x | User Guide IPv6 Support | 185