On 2023-04-17 17:52, Carlos E. R. wrote:
Why two, what's the difference?
The question should be why ONLY two. I get 2^72 addresses from mine. Yep, a gazillion addresses! Even my cell phone gets 2^64 addresses. As for two, check again tomorrow and the next day, etc. If they're using SLAAC, you get in addition to a consistent address, up to 7 privacy addresses, with a new one every day. The global dynamic address is your consistent address and may be based on your MAC address. The other one is a privacy address. Are you connecting directly to your ISP? Or through a router that supports IPv6? If a router, you may have more than 1 /64 available. I have 256. You can split off the /64s to different networks. For example, I have 1 for my guest WiFi, in addition to my main LAN. BTW, I run pfSense for my firewall/router and it supports multiple /64s. If my modem was in gateway mode, I'd only get a single /64.