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by wongabu 67 days ago
Have you tried it? NAT66 implies using fd00::/8, which then gets deprioritized in all devices below ipv4, in accordance with RFC 3484. The end result: all devices revert to using ipv4 on dual stack lan.

Ipv6 is fundamentally broken for failover scenarios.

2 comments

> NAT66 implies using fd00::/8

No it doesn't. Use the GUA from your primary ISP.

You can change the priority.