3 ms·
Assigning IPs based on room number seems quite practical. I noticed something quite similar at my old residential block, where wifi was provided building wide.
by nly 6y ago
Assigning IPs based on room number seems quite practical.
I noticed something quite similar at my old residential block, where wifi was provided building wide. When you connected to the (open) WiFi network you were in a VLAN with all other unauthenticated devices. Attempts to access the internet directed you to a captive portal. After signing in (it was over HTTPS) you were then punted in to your own VLAN, where you could see all your other authenticated devices on layer 2. The system remembered your MAC so you only had to do the captive portal once
- deleted 6y ago[deleted]
- osivertsson 6y agoWe had something similar in one place I lived, sans VLANs I think, but not sure if it makes any diff? With wireshark you could figure out the MACs available on the network and use the signin of someone else when they were not online by using their MAC adress.
- AdamJacobMuller 6y ago> The system remembered your MAC so you only had to do the captive portal once Staying in a Marriott in Oklahoma last week and my laptop joined the wifi. Captive portal said "welcome back Adam, click here to connect" WTF? How did they know who I am? When connecting my phone I got a prompt to enter my room number / name and select higher speeds (which I get free for premium status) and saw the checkbox labeled "remember my device" ah, so, that's how they remembered me. Did some digging and the last time I was in a Marriott was in 2019 (Thanks Pandemic!). In Tel-Aviv. Equal parts creepy and impressive and slick.