Advice Needed: Network bandwidth monitoring tools

GregRedd

GregRedd

New member
Morning all (I know it's not really hardware related, sorry...)

Been trying to work out the source of some high bandwidth usage in the wife's office - they've used 22GBs in two days and can't figure out where it happened. Everyone - there's 4 of them - swears blind that they didn't run any downloads or torrents. Normal usage in the office is around 2-3GBs a day. They have a 100GB monthly cap and rarely exceed it.

So I've been tasked with trying to isolate the source of the high usage for them.

Ideally I'm looking for something like DD-WRT that can pull info directly from the modem router but it's not compatible with their router (it's an ASUS DSL-N55U).

First prize would be something that allows me to monitor all the devices from a single location. It doesn't need to be a complex tool at all. Something simple that records bandwidth usage by device is all that is needed.

Alternatively, I've looked at something like GlassWire but that would mean installing on individual machines and then checking them and the end of each day.

Any suggestions from the community appreciated.
 
We distribute a network product thats most likely overkill for what you need but i still suggest using it if the router supports some form of netflow


register for free trial and use the flowmonitor plug in and will give you all packets sent and received . That router ip will be a flow source. But if it will have adequate netflow capabilities im not too sure of.


http://www.whatsupgold.com/free-trial/whatsupgold.aspx


If it does have then it will give you the top communications and you would find your problem.

i have a few other solutions i could suggest but the above would be the most accurate one. let me know and ill see how i can help.
 
Thanks [MENTION=21405]DarkStarZA[/MENTION] and [MENTION=5605]Cranky[/MENTION] - will have a look at both soon as I can. Appreciate the suggestions.
 
Ok, multiple ways to approach this, what I would propose is :

- Set up a server and run Icinga, configure it to check the router via SNMP (WAN port, LAN ports and WLAN port), check the machines via WMI and keep nice graphs of usage though PNP4Nagios
pnp-basket-view.png

I use Icinga to monitor all my routers (throughput, usage, etc), switches, servers (cpu, ram, disk space, ect), websites (services, response times, etc), printers (ink levels, memory, disk space, etc), databases (important metrices) and DNS (specific record types and response times) servers

- Configure MRTG (Multi Router Traffic Grapher), this essentially will do the same as Icinga for the router. Graphs look like this
192.33.92.249_fa4_1-day.png

I use MRTG to graph traffic flowing on specific links between branches, to customers, etc

- Also have a look at ntopng which is a network traffic probe that shows the network usage. This also allows you to keep stats and data from packets passing on the network as well as application protocols.

I use ntopng to monitor our network to check for abuse (BitTorrent traffic or other nasties)
 
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