Port monitoring

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Hello All,
Does anyone know of a good method to monitor TCP and UDP port traffic in real time? If there is something free out there, that would be ideal.

Thanks,
Mark

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See Download details: Microsoft Network Monitor 3.

Joe

--Joe

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Thanks Joe, I will give it a try….

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I also use Ethereal whenever I want to capture and analyse network traffic, it does a great job of interpreting stuff for you.

StuartR

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Joe

There’s a Network Monitor 3.1 beta out there somewhere in Microsoft-land, but even my fairly enthusiastic (but incompetent) Googling

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Here? Network Monitor

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Al

Yes, I got to connect.microsoft.com (by several routes!), but I couldn’t find the actual link to download the NM 3.1 beta…

John

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Guess you’ll have to sign in, and then be a beta tester/part of that particular project, as with everything at “connect”.

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You could use a packet capturing protocol analyzer like Ethereal (http://www.ethereal.com/%5B/url%5D), but it tends to be information overload unless you figure out how to write better filters than I can.

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Jefferson,

I use Ethereal *every* time I need to monitor traffic, and have never had a problem. I suppose you’re monitoring more traffic than me, but for TCP/UDP (and especially if you know the ports you’re targeting) I believe Ethereal is nothing to be afraid of. I haven’t made it any farther in their filters than modifying their predefined ones….would you care to share some examples of some of your filters, and explaining what you’re trying to capture?

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Jeremy, I’ve been traveling, so didn’t see your post until now. I generally am trying to look only at a particular host’s traffic, which I can do with an IP address. Usually everything else I try gives zero results. I must not have found the tutorial. Fortunately, I need it quite rarely.

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