Users Guide

l RA lifetime – the lifetime associated with the default router in seconds. A value of zero indicates that the
router is not a default router and will not appear on the default router list. The router lifetime applies only
to the router's usefulness as a default router; it does not apply to information contained in other message
fields or options.
l RA managed configuration flag (Enable DHCP for address) – a flag that indicates that the hosts can use the
DHCP server for address autoconfiguration besides using RAs.
l RA maximum transmission unit (MTU) – the maximum transmission unit that all the nodes on a link use.
l RA other configuration flag (Enable DHCP for other information – a flag that indicates that the hosts can use
the administered (stateful) protocol for autoconfiguration of other (non-address) information.
l RA preference – the preference associated with the default router.
You can use the WebUI or CLI to configure these options.
It is recommended that you retain the default value of the RA interval to achieve better performance.
If you enable RAs on more than 100 VLAN interfaces, some of the interfaces may not send out the RAs at regular
intervals.
In the WebUI
1. Navigate to the Configuration > Network > IP page.
2. Select the IP Interfaces tab.
3. Edit the VLAN on which you want to configure the neighbor discovery or RA options.
4. Select IP Version as IPv6.
5. Under Neighbor Discovery, configure the following neighbor discovery and RA options for the VLAN
based on your requirements:
a. Enter a value in the Reachable Time field. The allowed range is 0-3,600,000 msec. The default value is
zero.
b. Enter a value in the Retransmit Time field. The allowed range is 0-3,600,000 msec.he default value is
zero.
c. Enter a DNS server name in the IPv6 Recursive DNS Server field.
d. Enter a hop-limit value in the RA hop-limit field. The allowed range is 1-255. The default value is 64.
e. Enter the maximum interval value in the RA Interval(sec) field. Allowed range is 4-1800 seconds.
Default value is 600 seconds.
f. Enter a value in the RA Minimum Interval(sec) field. Allowed range is 3-0.75 times the maximum RA
interval value in seconds. The default minimum value is 0.33 times the maximum RA interval value
g. Enter a value in the RA Lifetime field. A value of zero indicates that the router is not a default router.
Apart from a zero value, the allowed range for the lifetime value is the RA interval time to 9,000 seconds.
The default and minimum value is three times the RA interval time.
h. Select the DHCP for address check box to enable the hosts to use the DHCP server for address
autoconfiguration apart from any addresses auto configured using the RA.
i. Enter a value in the RA MTU Option option. The allowed range is 1,280-maximum MTU allowed for the
link.
j. Select the DHCP for Other Address check box to enable the hosts to use the DHCP server for
autoconfiguration of other (non-address) information.
k. Select the router preference as High, Medium, or Low.
6. Click Apply.
Dell Networking W-Series ArubaOS 6.4.x | User Guide IPv6 Support | 210