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Thread: Hotels with wired internet only that block you making your own WLAN
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Old Apr 8, 2011 | 4:38 am
  #19  
dranz
 
Join Date: Apr 2000
Posts: 739
> The ARP table for a router should be shielded from the outside
> network. Thusly, a hacker outside the router network segment
> couldn't read/detect the ARP table or redirect traffic by poisoning
> the ARP table.

Correct. They aren't using ARP to inhibit multiple devices.

If the WiFi does not require login ... my hypothesis:

Side channel analysis (packet sniffing). Web-browsers bury a LOT
of user-device info in their headers that can fingerprint user devices.

How much uniqueness is possible? EFF has a website that will
report the uniqueness of your device/configuration:

http://Panopticlick.EFF.org

Without logging-in to anything ... Panopticlick estimates my
uniqueness as one in 1,494,778
Last edited by dranz; Apr 8, 2011 at 4:54 am
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