Most accurate bandwidth measurments

What would be the most accurate way of measuring bandwidth at the gateway? Basically, I want to find out what is the speed I'm getting before the firewall and all other security measures get to slow it down. I could call the ISP and ask them but I was wondering if there's a way to do that. Should I put a laptop in the DMZ?

Thank you!
Alan DalaITAsked:
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tankergoblinConnect With a Mentor Commented:
are you mean bandwith before entering your firewall? actually you can get a portal from your ISP where you can view your bandwidth there.
aa something like this
Alan DalaITAuthor Commented:
That's a great idea to see traffic but I also need to find what is the speed of the connection before it hits the firewall.

Thank you!
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tankergoblinConnect With a Mentor Commented:
just you online tool like speedtest.
or you can use bandwidth tester that are provided by your isp
Natty GregConnect With a Mentor In Theory (IT)Commented:
so plug your ethernet directly into a laptop and run speed, so thats direct from isp to you, take several measurements at different times per day to get your average, this will show bottleneck times at your isp too. of course your doing this test, with speed

then one by one add your device and run test, it will show what your bottleneck is and and which device slows down your network the most.
Alan DalaITAuthor Commented:
Thank you for your response!

By plugging the Ethernet directly, you mean to remove it from the firewall and plug it into the laptop? I'm not sure if that's possible since that would take us offline. Am I understanding your suggestion correctly?

Thank you for your help!
Kamran ArshadConnect With a Mentor IT AssociateCommented:

I personally recommend using IPerf for this tool. Other possible tools are;

Iperf      Open-Source
ttcp      Open-Source
Netperf      Open-Source
NetQoS      Propriety
Qcheck      Propriety
IxChariot      Propriety
SpeedTest      Propriety
simplenetsoftware      Propriety
Bandwidth Meter      Propriety
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