Hi Shree,

On 10-09-09 07:45 AM, JOSHI, SHRINIVAS ASHOK (SHRINIVAS ASHOK) wrote:
- the network never knows when a host detaches, because the host does not
send a "goodbye" RS. As a result, if a prefix were allocated by the network for 
the
host, it cannot be returned to a free prefix pool based on signaling from the 
host.
Are you planning to collect unused prefix based on an unused timer?

Prefixes are never "reclaimed" in SLAAC anyway. The Router will keep
advertising the prefix on the link no matter if there are any other
hosts on it or not. The prefix stays assigned to the link.



[Shree] when does the router stop sending unicast RA's to a MAC address ?

When it gets a notification from the AN that the specific DSL line is down.

Thanks
Suresh
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