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Re: IPv6: what is required of lower layers?



mouse%Rodents-Montreal.ORG@localhost (Mouse) writes:

>that, and now I'm getting packets, but they're addressed to a multicast
>address, ff02:3::1:ff02:2, not the address userland is sending to.

I would guess that's an embedded scope (and must not appear on the wire).

    sin6->sin6_addr.s6_addr16[1] = htons(zoneid & 0xffff);

where zoneid for a link-local address like ff02:: (or an interface-local
address) is the interface index.

But ff02::1:ff02:2 would be a solicited-node multicast address for
something with an anycast or unicast address of anything:XX02:0002.
Such addresses are used as the part of neighbour discovery called
duplicate address detection.

Did you configure an IPv6 address that ends on XX02:0002 ?



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