After OPENWRT is compiled, the ULA prefix will be invalid. "Does not meet the standard ULA prefix

After OPENWRT is compiled, the ULA prefix will be invalid. "Does not meet the standard ULA prefix.“
How can this be done before compilation so that the corresponding ULA prefix can be automatically generated? Thank you for your support.

I am not really sure what you mean because as far as I know the ULA is auto randomized at every first boot after upgrade or reset.

Unless you specify your own ULA with uci-defaults for example.

Yes, after startup, enter the interface interface and save, it will prompt that the ULA prefix does not match. It was found that there was a problem with the generation, and some of the data was not standard.

You'll need to provide more information.

E.g.

  • The "interface interface"?
  • What steps are you referring to?
  • Who found a problem?

Also;

  • What version of OpenWrt are you compiling?
  • What make and model hardware?
  • Does a normal pre-compiled image the official downloads site work?
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ULA prefix doesn’t have anything with interfaces to do. You don’t even need to specify a ULA.

Exactly what version of OpenWrt do you have?

And how does the faulty ULA look like?

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