I was happy with my IPv4 only setup, until someone, somewhere, on this forum said I was ‘missing out on a big part of the internet’, if I didn’t have IPv6.
So I started the quest to get my provider to exchange my docsis v2 cable modem (IPv4 only) for a docsis v3 cable modem (IPv4 & IPv6), and finally succeeded to get the modem.
After the initial (pfsense) setup hickups (needed to turn of the modem, reconfigure pfsense, reboot pfsense, turn on the modem), I finally got IPv6 addresses on my pfsense LAN interface(s), my pi (reconfigured pihole for IPv6 - pihole -r) and the windows workstations, using WAN (DHCP PD/56) and LAN (‘track interface’ PD /64). Happiness all over the place…
Now I started looking at connectivity issues, and found this site somewhere on this forum, so I started working to get an all green solution. Learned a lot of things, using duckduckgo, reading hundreds of documents; after a week I got the all green.
Now the worrying began. I was reading this topic, about ever changing addresses, and started to look in to it. To my surprise, I’m not affected, it appears my ISP doesn’t change the IP ever so often, I’ve been getting the same IPv4 and IPv6 address, even after a pfsense reboot.
Unfortunately, I also noticed my workstations IP address was picked up by this test site, and many other sites.
So as opposed to IPv4, where these sites can only pick up my routers IPv4 address, using IPv6 lets them identify the device you’re actually working on (all of them, all of the time).
This get’s me worried, My provider is now able, using the DHCP logs, to identify when I turn on my workstation(s). The sites I visit are able to identify witch machine is visiting their site, capable now to server different content for different machines within the same home network.
The question(s), open for discussion:
- Is using IPv6 equal to giving up part of your privacy?
- Is there anything you can do about it? I noticed on the test page ‘privacy extensions for IPv6 are enabled’, but that doesn’t really keep them from seeing the individual IP addresses.
- others …