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New Member

ASA 5505 Bandwidth Usage


We have a single ASA 5505 which we are trying to use to find problem computer(s) that are soaking up the internet bandwidth every few days.  The internet bandwidth gets choked out so no other clients can use it.  This issue happens every few days, so we believe it's a scheduled program, but we could be wrong.


When the above issues occurs, using the ASA home page, I can see our 'outside interface traffic usage' spikes and continues in this spiked mode for about 10-15 minutes.


Using the ASA 5505, what are the steps necessary to figure out which internal IP addresses are consuming the bulk of the internet bandwidth?


ASA 5505

ASA Version 7.2(4)

ASDM version 5.2(4) software

Firewall mode is "Routed"

Context mode is single


Thank you!



New Member

Howdy,One method is to use


One method is to use the 'show connections' command on your ASA.  This will provide to you all of the connections established. 

Copy and paste this output into your preferred text editor (Notepad++) and you can massage the data to place into Excel.  Essentially look at the 'bytes' counter and you can narrow down the IPs using the most data.

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