On 2022-12-22 12:43, Per Jessen wrote:
When WiFi is disabled, I get the IP my ISP gives me, it is a 10.***, and there is no IPv6 of any kind listed. I have just disabled wifi on one of mine, I get a 100.97.xx.xx address, and indeed no LL address. I wonder if it is related to the phone not having a MAC address ? That would explain why it doesn't generate an LL address.
I just checked my Pixel 6 on both Wifi and cell networks. On Wifi it has a link local address, but not on the cell network. I expect this is due to the network type. Wifi is intended to be a shared, multiple access network, but the cell network isn't. I don't know enough about the cell network to know what the situation is there. Also, on Wifi, my phone gets an address from my LAN, but on the cell network it gets 192.0.0.4, which is used for 464XLAT, the protocol used to provide IPv4 over an IPv6 only network. Also, on the cell network I get a single global address, but on Wifi, I get 2 global addresses, one a "privacy" address and one consistent. I get the same with unique local addresses.