[cisco-nas] IP Pool usage tracking

[Aaron Leonard]

> > We have numerous NAS's (6400s, 5400s, 6100s) where we utilize the "IP
> > LOCAL POOL" commands to hand out IP addresses to our customers.  We've
> > have found it difficult to track IP pool space availability so we can
> > catch when we are about to run out of IP space before we need to add
> > more.
> >
> > Anyone came up with a simple solution for this one already?

> The simple solution (at least for the dial-up gear) is to size your pool
> based on the number of B channels the box accomodates.  For DSL agg, you'd
> have to keep an eye on number of sessions or better, the number of free
> IPs in the pool (is that available via SNMP?).

Dumb question ... why not use DHCP or RADIUS to assign the addresses?
This would give you a centralized view of the address usage and would
allow you to avoid preallocating address chunks for sparsely populated 
NASes.

Aaron