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 [Guide] OPNsense Unifi setup with ipv6

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kwss
post Nov 7 2025, 09:11 PM

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QUOTE(Moogle Stiltzkin @ Nov 7 2025, 06:37 PM)
im using dhcpv6 but something is very wrong.

For vlan e.g. guest vlan, when i put DHVPv6 it break the internet. wont work at all. So for guest vlan had to remove that.

what this does, ipv4 works on guest vlan. Only the vlan1 network has working ip6 and ipv4 both.

So i donno why that is.
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IPv6 GUA is public IP. I needs to come from TM

QUOTE(kwss @ Oct 28 2025, 03:44 PM)
You cannot use the same EUI64 index for 2 different subnet.
On Unifi Home, TM only give a single /64, so you cannot use a different index either.

Conclusion: You can only have one subnet using IPv6.
Why? Because stupid TM don't support BCOP-690.
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