[cisco-nas] dial-backup "extra" authentication

[Tassos Chatzithomaoglou]

A lot of our customers have leased lines with us, but they also have an isdn line serving 
as a backup method. The ll + bri config is on the same router on customer's side.

We are trying to find a method (through aaa) in order to distinguish isdn calls coming 
from this router, from isdn calls coming from a pc. Both calls are made using the same 
username/password and are terminated to the same nas.

Is there a way we can accomplish such a thing?

We're thinking of CLID, but there are 2 problems with this:

1. Our PTT doesn't always provide CLID
2. The pc isdn call may originate from the same isdn number as the router isdn call, so 
the CLID will be the same


-- 
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    Chatzithomaoglou Anastasios
Network Design & Operations Center
           FORTHnet S.A.
       <achatz at forthnet.gr>
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