[ale] AT&T fiber and IPv6?

[Bryan L. Gay]

I had both Comcast and AT&T Fiber for years in Kennesaw. I was never able
to get IPv6 delegation working reliably on AT&T, even after they stopped
doing 6rd. I have Comcast now at the new place, 1.2Gbps downlink, and have
never had an issue with Comcast's IPv6. AT&T just never seemed to get their
act together. While having 1Gbps symmetric over IPv4 was great, and it was
less expensive, I'm happily on Comcast, now. AT&T requires you use their
gateway, which introduces other recurring problems. On Comcast, I own my
own DOCSIS dumb modem.

On Fri, Feb 11, 2022, 17:06 James Sumners (ALE) via Ale <ale at ale.org> wrote:

>
>
> Earlier today AT&T attached some fiber to the pole directly across the
> street from my driveway. I’m sure it will take them another month or two to
> activate the line, but I want to go ahead and solicit some knowledge from
> you folks.
>
> Currently, I’m on Comcast (plain residential). I despise the business, but
> their network people are top notch and have rolled out a nice stable IPv6
> network. They assign my WAN interface a `/128` and allow network
> assignments via a `/64` or `/60` prefix delegation over DHCPv6. The `/60`
> allows me to create multiple VLANs in my house for things like IoT devices
> separate from my primary devices.
>
> Does anyone have experience with AT&T’s IPv6 implementation? Would
> switching to them be mostly transparent in this regard? Are there any
> “gotchas” that I should be aware of?
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