So I woke up this morning to find that IPv6 wasn't working at all at our house. Looked at the router and saw that it was pulling in a /56, which was highly unusual for Mediacom. Did something change overnight? Client devices, for some reason, don't seem to be able to do anything with that prefix, but I haven't dove into it and all my configuration assumes a /64. Gear on my end is an Arris 6183 and an Ubiquiti Edgerouter 4.
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