[c-nsp] ATM/PPPoE - delivering DSL service - giving out static Ips

[Justin M. Streiner]

On Thu, 6 Apr 2006, Graham Wooden wrote:

> Without the use of a Radius server to authenticate users (using local), am I
> able to specify static IP assignments to DSL users? I have a generic pool
> from which I am dishing out addresses. I would like to assign static
> addresses to these users opposed to having them specify anything on their
> modem.
>
> Thoughts?  Using 12.3.10 IOS on a 2621 w/ 4pt ATM. Thanks,

You could possibly do it, but such a design will not scale well and your 
router config would start to get huge once you began adding lots of users.

I say "possibly", but I've never built a DSL aggregation system that way 
:-)

You'd need to be able to accomplish the following things:
1. store username/password pairs on the router - easy enough
2. bind a username/password pair to a specific IP address - doable, but 
setup/update is task-intensive.  The easiest way to hand that information 
back to the user is through PPPoE.

If the users are being presented to you as one PVC per customer, then you 
could treat them as separate routed interfaces and do bridging.  The issue 
with that is access control - PPPoE gives you a big advantage.

jms