Picking a MAC address for a FreedomBox
Posted Dec 6, 2012 21:18 UTC (Thu) by jimparis
In reply to: Picking a MAC address for a FreedomBox
Parent article: Picking a MAC address for a FreedomBox
s/sending a DNS query to the MAC address/sending an ARP request to the MAC address/
Actually, while this LWN sentence was confusingly brief, the original post *was* talking about DNS queries. ARP on the LAN will just get you the LAN IP address. John's original post was suggesting:
- Get victim's wifi MAC address (which can be correlated with location by one of the companies that surveil this)
- Connect to the open wifi (which will often let DNS through even if it's a captive portal)
- Send a DNS request for attacker.com, which tells attacker.com's nameservers the victim's public IP address (if no intermediate DNS servers are used).
Now you've correlated victim's public IP address with location.
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