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Network Monitoring
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Senior User
Join Date: Feb 2000
Location: Webster, NY, USA
Status:
Offline
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I am currently running a shared internet connection from my Mac. Is there a way I can monitor who is connecting to my shared network as well as what those who are using the connection are doing.
Also, on a similar note, is there a utility/tool that can give me stats such as how much bandwidth is being used, connection speed, etc?
Thank you,
O
B unce!
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Dedicated MacNNer
Join Date: Jul 2004
Location: SoCal Baby
Status:
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TheZee
MacBook Aluminum Unibody, 2GHz Intel Core duo, 2GB RAM, 160GB HD, OS X 10.5.7
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Administrator  Join Date: Apr 2001
Location: San Antonio TX USA
Status:
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The big thing is that to see what's going in and out you need to be able to look directly at the primary router-and maybe the modem as well. Whether you can do this effectively or not often depends on the specific hardware you have-most consumer grade networking hardware doesn't provide management functionality. For example, the most my Linksys BEFSR41 wired router gives me is the ability to send incoming/outgoing log data to a particular IP... For Linksys' more advanced routers, such as the WRT54G series, there is third party firmware that may give you more management functionality (but I haven't looked into it).
For what it's worth, just about every U.S. DSL modem is actually a "modem/router", meaning that in many cases you can log into that and perhaps get more or better information about the connection that way-depending on what the device offers, of course. In theory my rather old Westell 516 modem can be managed that way, but I've never actually gotten into it to see what it offers.
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Glenn -----OTR/L, MOT, Tx
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Senior User
Join Date: Feb 2000
Location: Webster, NY, USA
Status:
Offline
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Perhaps I was unclear. I am using my Mac as the router, by going into System Pref's and turning on Internet Sharing. I just want to monitor to see who is connecting, what my speed is, and make sure nothing illegal/unethical is being done by those connected.
Thank you
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Mac Enthusiast
Join Date: Feb 2006
Status:
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EtherPeek will let you see whatever is hitting your wireless network (monitor en1 usually), or you can use a command line tool like TCPDump (I'm out of my depth here, I'm sure others an elaborate).
I hate the idea but you could close your wireless network to remove the issue. Or require a WPA password. Just a thought.
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Administrator Join Date: Apr 2001
Location: San Antonio TX USA
Status:
Offline
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Yep, I missed your point completely. It looks like dimmer has pointed out a pretty good tool to start with.
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Glenn -----OTR/L, MOT, Tx
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Mac Enthusiast
Join Date: Feb 2006
Status:
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You can also use the free five "thing" version of Intermapper if your router supports SNMP. You will get a lot of follow-up calls tempting you to buy the whole thing, but it's a very nice application.
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Mac Enthusiast
Join Date: Feb 2006
Status:
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can give me stats such as how much bandwidth is being used
There was an OS 9 App that could d this: CyberGauge maybe? Activity Monitor will show you this data so share your internet connection and use that to get an idea.
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Mac Enthusiast
Join Date: Feb 2006
Status:
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I left out putting your Mac into thenetwork as the router in that last comment. Silly.
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