Forum Discussion
Telus fiber IPv6 prefix changes every time my router reboots
Hi all, I have Telus Fiber at home. I'm a pretty advanced user, running both IPv4 and IPv6 via prefix delegation. Works great, except that every time I reboot my router (every few months for an updat...
Many ISPs assign IPv6 prefixes dynamically to residential customers. This means that each time you reconnect to the network (e.g., after a router reboot), you may receive a new prefix. This is a common practice to manage address allocation efficiently. IPv6 is designed to provide a large number of addresses, and ISPs may not prioritize static address assignments for residential customers. They might assume that most residential users don't need static IPv6 addresses.
This is not proper behaviour per https://tools.ietf.org/html/rfc8978. In the event that a router reboots (or there is a power outage etc) then clients will have unroutable ipv6 addresses for some time. Telus should change this.
