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comment How to detect/list rogue computers connected to a WIFI network without access to the Wifi Router interface?
Hi, GdD. My wifi setup is pretty simple, and I'm running a /24 network so the broadcast is/should be .255. I've just tried again and in this case I got one response, from my InOut mediacenter, but nmap -sn reports 8 hosts up... I guess most modern OSs don't answer to broadcast ping, to avoid ping floods?
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comment How to detect/list rogue computers connected to a WIFI network without access to the Wifi Router interface?
Also, I agree with @GdD that probably the best would be to change the WIFI password, and ensure they're using WPA2 (instead of WPA-PSK) to secure the network - it's what I first suggested and will push for as a reasonable suggestion regardless of whether they have freeloaders or not... but as they'd have to go through the telco's managed support for that, and modify 6-8 devices, I'm sure it's more likely they'll pay attention if they turn to have "visitors" :D
Dec
2
revised How to detect/list rogue computers connected to a WIFI network without access to the Wifi Router interface?
Added the results of a brief tests in the line that @GdD suggested, and contrasted with running nmap -sn
Dec
2
comment How to detect/list rogue computers connected to a WIFI network without access to the Wifi Router interface?
Hi, @GdD, thanks a lot for the hint; it looks much simpler than an nmap ping sweep (at least for those that don't have nmap) I've tried the ping , arp -a trick on my own wifi network and came up dry - see the edit to my question for more info (it's difficult to paste command output in the comments! :D)
Dec
2
comment How to detect/list rogue computers connected to a WIFI network without access to the Wifi Router interface?
Hi! It's not too hard - as long as you know what nmap is, how to run it from the command line, etc.. I know it's the way I'd do it, but was hoping to avoid installing software, etc... but I'm seeing that it's going to be the most reliable way to do it, thanks for validating my hunch!!!
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asked How to detect/list rogue computers connected to a WIFI network without access to the Wifi Router interface?