IPv6 NDP router advertisement from global address

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1

Hi

My nodes are getting “invalid” router advertisements a whole lot, and falling out here which is causing a severe decrease in mesh reliability.

Specifically, it is the first check: the IPv6 source address is not link local. (And I have verified that with a sniffer, the packets contain a full 128-bit inlined global address). I don’t know the standards well enough to know who is at fault here, but I reckon either the sender or the receiver must be wrong :slight_smile:

Does anyone know if this requirement is true? That router advertisements in response to router solicitations must contain link-local source addresses? Incidentally, the node responding is one link away, so it could have used a link-local address, it just chose not to.

Thanks again for your help Michael

2

Hi Michael, would it be possible for you to open an issue for that on GitHub (preferably with a sniffer dump)? Currently I’m short of time to look into it, but later on I could / someone else could bite there teeth into it.

Cheers, Martine