[c-nsp] ADSL and IP Pools

[Oliver Boehmer (oboehmer)]

Melvin C. Etheridge <> wrote on Monday, July 11, 2005 4:14 AM:

> I have a 3640 that I use to terminate vpdn sessions via pppoa for my
> DSL customers. 
> 
> I use a vertual template and ip pools.
> 
> How do I keep the 3640 from handing out the same IP to a customer
> each time? 

configure your pool with a cache-size of zero (default is 20), i.e

 ip local pool .... cache-size 0

from the docs:
cache-size: Sets the number of IP address entries on the free list that
the system checks before assigning a new IP address. Returned IP
addresses are placed at the end of the free list. Before assigning a new
IP address to a user, the system checks the number of entries from the
end of the list (as defined by the cache-size size option) to determine
that there are no returned IP addresses for that user. The range for the
cache size is 0 to 100. The default cache size is 20.

	oli