4 ms·

I have done PD of a /60 from Comcast for three years and my prefix never changed. I can't imagine why it would or should.

• bombcar 5y ago
  Mine is pretty stable but anytime the cable modem gets fried by lightning the new one gets a new prefix. I wish it was tied to my account somehow.
  • d00bianista 5y ago
    That's because the DHCPv6 client in the modem generates a unique DUID for itself and the new one cannot know the fried modems DUID.
  • ac29 5y ago
    If your cable modem is regularly getting fried by lightning, you can get lightning arrestors inline on the coax connection.
    • bombcar 5y ago
      I have one now but I suspect the lightning shall … resist arrest.