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I encountered a similar issue when I first started using Tailscale. My fix is simple: disable IPv4 inside Tailscale. Just use the v6 ULA address that begins with fd7a exclusively. This works even if your ISP doesn't support IPv6: the inner IPv6 packets can be encapsulated inside v4 packets. There's unfortunately no GUI to do this; you'll have to change the Tailscale ACL to disable IPv4.



> disable IPv4 inside Tailscale.

TIL this is a thing

> Just use the v6 ULA address that begins with fd7a exclusively.

perfect, this is exactly what I desired

(I'm having an increasingly high number of sad v4 only LAN devices and planned to move to a v4 block that sits way too close to the one Tailscale uses.)

> There's unfortunately no GUI to do this; you'll have to change the Tailscale ACL to disable IPv4.

ah that's why I missed it, thanks!




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