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Show/Log users connecting to dial-up line in Cisco router

Posted on 2011-09-14
Last Modified: 2012-05-12
I have a Cisco 2811 into which I installed a PVDM2-24DM module in so I could configure dial-up for some technicians in the field to connect to our network and sync work through handheld devices.  I did this a couple years ago and after it was working I have never had to mess with it.  I'm now being asked to monitor the line to see if anyone is still using it to connect.  If no one is using it we are going to cancel the line to save money.  If it is being used then we will need to try and figure out who is still using it so they can be swapped to the new system that uses syncing over the web.  Other that doing a real time 'sh users' to see who is connected what can I do?  Can I set it up to capture this info in a log file so I can see connections over a couple weeks?
Question by:qbakies
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LVL 17

Expert Comment

ID: 36538767
Do you use any kind of network-based authentication for the dialups? I assume not, or you could use the accounting data from it ... so if you use local authentication, you could get the information by using syslog output to some NMS ...
Alternatively, you could build an EEM applet to do stuff like send you a mail every time someone logs in ...
Please provide more info if you need more detailed feedback ...
LVL 10

Author Comment

ID: 36538834
Authentication is local to the router.
LVL 17

Expert Comment

ID: 36538857
What kind of logging/notification would you want or need? As I wrote, syslog would be the easiest to set up, check you logs on the router ("show log") to see whether the logins are already recorded locally ...
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LVL 10

Author Comment

ID: 36538883
I just need something to record when users login and keep it for xx days so I can check it every few days to see if anyone is connecting.  Keeping some kind of log on the router is fine.  I connected to the router through the dial-up earlier today and just did a 'sh log' and it isn't listed.
LVL 10

Accepted Solution

qbakies earned 0 total points
ID: 36551487
Opened a TAC case for this and they have stated that the easiest thing is just to reset the log file and then check it daily for activity on the async0 that the connections use.
LVL 10

Author Closing Comment

ID: 36572289
Cisco TAC answered this one

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