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23.7 Legacy Series / Re: IPv6 troubles, cannot make routing work.
« on: August 17, 2023, 03:45:12 pm »
I've had Spectrum cable internet service in the past and one thing that did then was to associate their IPV6 PD with the MAC of the device on the modem.
For instance, say you had your router plugged in to the modem, and then you swap in your laptop directly to the modem. If the modem wasn't power cycled, it would not issue any IPv6 addresses to the "new" MAC on the laptop.
I'm not sure if this is your exact scenario but, if you spoofed a WAN MAC address on the OPNsense box, or if you changed interfaces (new MAC on a different interface), I've seen this trip up IPV6 PD on Spectrum without also power cycling the modem.
For instance, say you had your router plugged in to the modem, and then you swap in your laptop directly to the modem. If the modem wasn't power cycled, it would not issue any IPv6 addresses to the "new" MAC on the laptop.
I'm not sure if this is your exact scenario but, if you spoofed a WAN MAC address on the OPNsense box, or if you changed interfaces (new MAC on a different interface), I've seen this trip up IPV6 PD on Spectrum without also power cycling the modem.