20 Dec
2013
20 Dec
'13
4:43 a.m.
In the case of Comcast (and anecdotally ISC DHCP) - You'll either need to wait out the the lease time (4 days) or ask Comcast to nicely clear out your /64 lease manually. Release/renew doesn't release your current DHCP lease. I was getting A /64 and /60 (/64 had a preference of 255) before Comcast removed the /64 lease manually.
that's interesting.. I don't see anything except the /64... even when I ask via the pd sla-len hint for a 60, 62, 63 .... :(