D-Link DSR-250N, User Manual

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Unified Services Router
User Manual
19
RADVD
Advanced > IPv6 > IPv6 LAN > Router Advertisement
To support stateless IPv6 auto configuration on the LAN, set the RADVD status to
Enable. The following settings are used to configure RADVD:

Advertise Mode: Select Unsolicited Multicast to send router advertisements
(RA‘s) to all interfaces in the multicast group. To restrict RA‘s to well
known IPv6 addresses on the LAN, and thereby reduce overall network
traffic, select Unicast only.

Advertise Interval: When advertisements are unsolicited multicast packets,
this interval sets the maximum time between advertisements from the
interface. The actual duration between advertisements is a random value
between one third of this field and this field. The default is 30 seconds.

RA Flags: The router advertisements (RA‘s) can be sent with one or both of
these flags. Chose Managed to use the administered /sta teful protocol for
address auto configuration. If the Other flag is selected the host uses
administered/stateful protocol for non-address auto configuration.

Router Preference: this low/medium/high parameter determines the
preference associated with the RADVD process of the router. This is useful
if there are other RADVD enabled devices on the LAN as it helps avoid
conflicts for IPv6 clients.

MTU: The router advertisement will set this maximum transmission unit
(MTU) value for all nodes in the LAN that are autoconfigur ed by the router.
The default is 1500.

Router Lifetime: This value is present in RA‘s and indicates the usefulness
of this router as a default router for the interface. The default is 3600
seconds. Upon expiration of this value, a new RADVD exchange must t ake
place between the host and this router.