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Wireless Users: How to detect?
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Mac Enthusiast
Join Date: Oct 2001
Location: Chicago, IL
Status:
Offline
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Hey all,
I have a Linksys BEFW11S4 and I share the wireless connectivity with my neighbors (condo). If they were hard-wired, I could see the lights on the Linksys telling me they were using the access - but if they're wireless (and my iBook too), how can I know if they're on? There aren't any lights on the Linksys, or features in the Linksys Admin through the browser. I gave them all the WEP password, so I'm not tying to keep them off - but is there a way to see when they're on?
Thanks!
BD
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Dedicated MacNNer
Join Date: Mar 2002
Status:
Offline
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My router isn't in front of me at the moment, but there is a page that shows what ips are connected, including wifi machines.
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Mac Enthusiast
Join Date: Oct 2001
Location: Chicago, IL
Status:
Offline
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Hey there,
Well... I know there's a page that displays which DHCP IP addresses have been assigned and are being used; but not with Assigned IP's. I've Assigned them all IP's, so they don't show up on the DHCP page. Ya know?
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Dedicated MacNNer
Join Date: Mar 2002
Status:
Offline
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Yes, I just noticed that in the manual. (You didn't say which method you were using.)
Other than that, I don't think there is a way. (Not cheap, anyway.)
(Well, there is the Wireless - Active Mac Table... [ducks since you've probably already tried that])
(Last edited by thesearcher; Feb 24, 2003 at 08:31 PM.
)
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Fresh-Faced Recruit
Join Date: Feb 2003
Status:
Offline
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just assign the ips via DHCP. what would be the down fall to that?
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Fresh-Faced Recruit
Join Date: Feb 2003
Status:
Offline
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If WEP is not enabled, then its easy for your neighbor to just point to the SSID of your router (doesn't XP list all available SSIDs that it can see?) and then the DHCP server will issue an address?
Your neighbor could also just manually assign their PC a static IP address in your subnet (usually 192.168.1.x or 192.168.2.x) and then still use your router.
If you want to keep them out, i think you need to use WEP or put the MAC address of each client (your PCs) in your router setup so that only those clients can connect.
You might want to also change the default login password, so they can't login into the router and view/edit your setup in their favor.
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Mac Enthusiast
Join Date: Oct 2001
Location: Chicago, IL
Status:
Offline
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Well, I suppose there's no harm in allowing DHCP IP's, but I wanted WEP + no DHCP so that it would be a little tougher to get on.
I just am curious to know when they're on... nothing major. I thought there'd be some sort of shareware that could detect something going on on the wireless network.
Oh, well. Thanks though!
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Dedicated MacNNer
Join Date: Jan 2003
Location: San Francisco
Status:
Offline
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Have you tried KisMAC? I could be wrong but i thought that could passively detect users on an AP. It's not as effective as the solution your looking for but its the only thing i can think of.
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Fresh-Faced Recruit
Join Date: Feb 2003
Status:
Offline
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Sorry - I reread the thread and realized all you wanted to do is find out who's on your subnet. A simple ping utility (windows program) could be used to do this. Typcially you provide a start address, say 192.168.1.1 and then it will incrementally ping addresses up to 192.168.1.254. Since you already know the IP addresses of your PCs, if you get replies from "other" IP addresses then that indicates something is on your subnet at that address.
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