[riot-notifications] [RIOT-OS/RIOT] gnrc_ipv6_nib: add full RFC4862 DAD support (#8823)

Martine Lenders notifications at github.com
Tue Jun 15 16:16:01 CEST 2021

@miri64 commented on this pull request.

> @@ -838,9 +837,30 @@ static void _handle_nbr_sol(gnrc_netif_t *netif, const ipv6_hdr_t *ipv6,
     DEBUG("     - Destination address: %s\n",
           ipv6_addr_to_str(addr_str, &ipv6->dst, sizeof(addr_str)));
-    /* TODO SLAAC behavior */
+    gnrc_netif_t *tgt_netif = gnrc_netif_get_by_ipv6_addr(&nbr_sol->tgt);

I think what is happening is that the node behind interface 7 thinks the global address (`2001:16b8:45b5:9afb:ece6:c0ff:fe26:b99f`? ... really would help to have some graphical representation of your set-up instead of juggling with numbers and hex-strings ;-)) is on-link and thus tries to resolve the neighbor. Since the prefix is quite similar that could indeed be what is happening. However, as the addressed node is behind interface 6 it is of course not on-link.

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