Verizon Fios User Manual page 122

nEtWoRk SEttingS
5. To disable the IPv6 service, click on the Disable
Enable IPv6 Support field. Enable IPv6 Support
6. Click Apply Apply to have changes take effect.
Once configured using valid IPv6 WAN and LAN configurations, you
should not see any errors when you click on the Apply
the Status Status page on the main menu will reflect the router's new IPv6
address.
You should also see the IPv6 address for all IPv6 supported
devices on your local network displayed on the Network/Network
Status page.
Disable option in the
Apply button and