Came across a comment that Verizon was rejecting an IPv6 lease renewal if there is an IA_NA option in the request
It's odd behavior, but with that bit of information I managed to get my IPv6 connections stable on my Firewalla Purple with the following:
ssh into the firewalla
remove the line with `ia_na`
at the command prompt, run `sudo systemctl restart firerouter_dhcpcd6@eth0`
Now my IPv6 addresses properly renew and things are stable. Note if you reboot your firewalla you'll likely have to login and redo these steps as I don't believe those changes will persist
Definitely weird behavior on the part of FIOS but it would be ideal if perhaps there was a toggle/option in the app to not request an address (just the prefix) and it would be a very specific scenario for FIOS but resolved my issues.
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