How to monitor useage on an ASA

Posted on 2009-02-10
Medium Priority
Last Modified: 2012-05-06
I'm wondering what options I have via the command line on a Cisco ASA 5505 to monitor such things as bandwidth usage and general types of traffic being passed.
Question by:numb3rs1x

Accepted Solution

acroment earned 1500 total points
ID: 23602532
from the command line? Not much.

But from ADSM - you can get a good view of things from the monitoring tab.

You could also use something like MRTG which gathers data via SMNP and Syslog.
LVL 43

Expert Comment

ID: 23602575
You can do a "show int outside" to view the interface statistics (1 and 5 minute average) on the box (real-time).  Look at MRTG or Cacti for historical bandwidth utilization.

As far as type of traffic, the ASA records connections which you can syslog off and look at or take a look at Fireplotter.


Expert Comment

ID: 23605510
In addition to the above, it is also possible to capture packets that match access lists on whichever interface you want to monitor/inspect.
It'll give you a timestamp, source/destination IP as well as protocol/port number - e.g.
2: 18:15:23.719811 > P 2675336381:2675336825(444) ack 4112385865 win 64583.

The link below gives good guidance on analysing output/configuring the capture:

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