Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Cisco 3640 log enable

Hi everyone!!!

We've Cisco 3640 RAS server for users connecting from home after office hours . As the management feels that peoples are connected for a longer time (we have limited lines only), we want to enable log on 3640 Router to know which user id coneccted for how long it was active...

Pls advise me how to do . FYI, We don't have Radius server .

Thanks with regards,


  • Other Network Infrastructure Subjects

Re: Cisco 3640 log enable

You would need to implement RADIUS or TACACS+ to get this level of Accounting.

Cisco Employee

Re: Cisco 3640 log enable

Hi Raju. You might find that configuring a log buffer will give you enough of what you're looking for, so you can perform incidental tracking down of problem users. The global command "logging buffered [size] [message_level]" will create a wrap-around log buffer in RAM. Issuing the Exec command "show log" lets you view the contents. Please be advised that logging to the higher levels, such as debug (level 7), will create added load, especially if Console and Monitor (VTY/Telnet) logging is also enabled (which they are by default).

Below is a URL which provides more information...

Important Information on Debug Commands:


Cisco Employee

Re: Cisco 3640 log enable

A router does not give you this information in any

show command. You will have to make use of this 3rd

A (Accounting) out of a AAA server (radius or tacacs). Why dont you guys implement an idler timer

or an absolute timer for that matter, if the only concern is not to let users to connect forever.