4 ms·
That's odd. What ISP is it? This goes against RFC recommendations (ex: https://tools.ietf.org/html/rfc6177 https://tools.ietf.org/html/rfc6177 - assign between
by mgbmtl 11y ago
That's odd. What ISP is it? This goes against RFC recommendations (ex: https://tools.ietf.org/html/rfc6177 https://tools.ietf.org/html/rfc6177 - assign between /64 to /48)
My ISP (DSL with teksavvy.com in Canada) offers a dynamic-ish /64 with SLAAC, then a static /56 subnet over DHCPv6. I know some people who had issues with their /56 subnet resetting, but that was usually solved by contacting tech support.
- mgbmtl 11y agoHmm, realized this after posting: my comment on /64 to /48 is rather off-topic, and the reason why the ISP allocates dynamically might be that they are using 6rd [1]. From what little I understand of it, 6rd calculates an IPv6 subnet by using the IPv4 address. So unless your v4 adress is static, your v6 subnet will be dynamic. Some cable providers are using this in Canada (Videotron). I hope they get rid of it soon, because it's really clunky! [1] https://en.wikipedia.org/wiki/IPv6_rapid_deployment https://en.wikipedia.org/wiki/IPv6_rapid_deployment