[lwip-devel] [bug #47921] link-local prefix in router advertisement must not be processes for SLAAC

[Daniel Elstner]

Follow-up Comment #6, bug #47921 (project lwip):

This change broke stateless autoconfiguration in my network.

I upgraded from STABLE_2_0_0 to master and now my device no longer gets a
routable IP assigned, in addition to the link-local address. With the commit
for this bug reverted, it works again.

The IP I get from the router is:
2A02:8109:8100:24:804:68FF:FE8B:1148

I added some debug printouts and it turns out that prefix_opt->length is 4,
not 64. No idea if there is anything invalid about it. The link-local test
returns false.


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