Inbound IPv6

MConstant

This past weekend I configured an IPv6 DMZ host to play with inbound connections. I tried connecting from
Cloudflare Warp and from another FIOS customer. No traffic made it to the internal host. Traffic capture between the CR1000a and the ONT showed responses to outbound IPv6, but not the traffic initiated from outside. I was able to connect to an IPv4 DMZ host. Inbound IPv6 was working several months ago.

Dose anyone know what has changed?

smith6612

The CR1000A has a IPv6 Firewall on it. Have you configured an IPv6 Pinhole for your application?

See page 92 (PDF page) on the manual: https://www.verizon.com/supportresources/content/dam/verizon/support/consumer/documents/internet/verizon-router-guide.pdf

As for inbound traffic, it should still work. As long as the IPv6 address and prefixes are still routing to you. Not aware of any changes that would've happened to break IPv6 inbound connectivity.