Congrats to the whole team at Sonic for getting this launched! It's been a long road and I'm happy to see a successful start of the rollout.
PD does work and I'm able to pull a /64 in Santa Rosa. Attempts at a /48, /56, or /60 are also met with a /64 in response. I'm using wide-dhcpv6-client on Debian.
Wondering if there are plans to offer shorter prefixes in the future. That's important if a user has multiple subnets. For example, Nest WiFi devices can only enable IPv6 on the guest network if the ISP prefix is shorter than 64 bits
. It's also best practice: RIPE has a great explanation of why
, but ARIN makes similar recommendations
, and all of that's based on the RFCs
. Other companies provide it; AT&T and Xfinity each do /60, Google Fiber and Comcast Business do /56, so I expect one day Sonic can get there as well. In the meantime I'll continue to route my extra subnets over Sonic's 6in4 tunnel (which is awesome and I hope never goes away, because it's static and can delegate reverse DNS