This release does not support external captive portal for IPv6. The captive portal authentication, customization of
pages, and other attributes are same as IPv4.
You can configure captive portal over IPv6 (similar to IPv4) using the WebUI or CLI. For more information on
configuration, see Configuring Captive Portal in the Base Operating System on page 307.
Working with IPv6 Router Advertisements (RAs)
AOS-W enables the switches to send router advertisements (RA) in an IPv6 network. Each host auto generates a
link local address when you enable ipv6 on the host. The link local address allows the host to 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.
AOS-W uses Radvd, an open source Linux IPv6 Router Advertisement daemon maintained by Litech Systems Design.
You can perform the following tasks on the switch to enable, configure, and view the IPv6 RA status on a VLAN
interface:
n Configure IPv6 RA on a VLAN
n Configure Optional Parameters for RA
l Configure neighbor discovery reachable time
l Configure neighbor discovery retransmit time
l Configure RA DNS
l Configure RA hop-limit
l Configure RA interval
l Configure RA lifetime
l Configure RA managed configuration flag
l Configure RA MTU
l Configure RA other configuration flag
l Configure RA Preference
l Configure RA prefix
n 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:
AOS-W 6.5.3.x | User Guide IPv6 Support | 140
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