[cisco-nas] ISDN Authentication using Caller ID

[Gaurav Sabharwal]

on 05/02/2007 08:11 PM Oliver Boehmer (oboehmer) said the following:
{snip}
>> The goal is to use only the ISDN CLID for authentication. The remote
>> router will not be configured with any username/password information.
> 
> Ok. May I ask the reason behind this?
We are implementing this service for a customer that manage the CPE 
using a custom built interface (GUI that dials into the router and 
configures the router). From what we know, the costs and times 
associated with the change in the code are prohibitive.

{snip}
>> The document mentions that this is only supported on the AS53xx. Is
>> this support there on the 2811s as well? I tried the "aaa preauth"
> command
>> on couple of routers with 12.4.x IOS but the command is not available.
> 
> Sorry, this feature is only available on the access servers in the
> AS5xxx family.
Can you think of any other way of implementing this? I was thinking 
about the crazy idea of using 1200 "dialer caller" statements + dynamic 
IP address assignment via a local pool. The dial part of the solution is 
for backup services. The primary would be DSL.

- Gaurav